Talos Rules 2021-07-06
This release adds and modifies rules in several categories.

Talos has added and modified multiple rules in the indicator-compromise, malware-cnc, os-windows and server-other rule sets to provide coverage for emerging threats from these technologies.

For information about Snort Subscriber Rulesets available for purchase, please visit the Snort product page.

Change logs

29180

2021-07-06 20:09:34 UTC

Snort Subscriber Rules Update

Date: 2021-07-06

This is the complete list of rules modified and added in the Sourcefire VRT Certified rule pack for Snort version 2091800.

The format of the file is:

gid:sid <-> Default rule state <-> Message (rule group)

New Rules:


 * 1:57878 <-> DISABLED <-> PROTOCOL-DNS Microsoft Threat Management Gateway heap buffer overflow attempt (protocol-dns.rules)
 * 1:57879 <-> ENABLED <-> INDICATOR-COMPROMISE Revil Kaseya ransomware log clearing http upload (indicator-compromise.rules)

Modified Rules:


 * 1:25381 <-> DISABLED <-> SERVER-OTHER Microsoft Threat Management Gateway heap buffer overflow attempt (server-other.rules)
 * 1:25312 <-> DISABLED <-> SERVER-OTHER Microsoft Threat Management Gateway heap buffer overflow attempt (server-other.rules)
 * 1:57876 <-> ENABLED <-> OS-WINDOWS Microsoft Windows Print Spooler remote code execution attempt (os-windows.rules)
 * 1:42894 <-> ENABLED <-> MALWARE-CNC Win.Trojan.Ursnif variant outbound connection attempt (malware-cnc.rules)
 * 1:57877 <-> ENABLED <-> OS-WINDOWS Microsoft Windows Print Spooler remote code execution attempt (os-windows.rules)

29171

2021-07-06 20:09:34 UTC

Snort Subscriber Rules Update

Date: 2021-07-06

This is the complete list of rules modified and added in the Sourcefire VRT Certified rule pack for Snort version 2091701.

The format of the file is:

gid:sid <-> Default rule state <-> Message (rule group)

New Rules:


 * 1:57878 <-> DISABLED <-> PROTOCOL-DNS Microsoft Threat Management Gateway heap buffer overflow attempt (protocol-dns.rules)
 * 1:57879 <-> ENABLED <-> INDICATOR-COMPROMISE Revil Kaseya ransomware log clearing http upload (indicator-compromise.rules)

Modified Rules:


 * 1:25312 <-> DISABLED <-> SERVER-OTHER Microsoft Threat Management Gateway heap buffer overflow attempt (server-other.rules)
 * 1:25381 <-> DISABLED <-> SERVER-OTHER Microsoft Threat Management Gateway heap buffer overflow attempt (server-other.rules)
 * 1:42894 <-> ENABLED <-> MALWARE-CNC Win.Trojan.Ursnif variant outbound connection attempt (malware-cnc.rules)
 * 1:57876 <-> ENABLED <-> OS-WINDOWS Microsoft Windows Print Spooler remote code execution attempt (os-windows.rules)
 * 1:57877 <-> ENABLED <-> OS-WINDOWS Microsoft Windows Print Spooler remote code execution attempt (os-windows.rules)

29170

2021-07-06 20:09:34 UTC

Snort Subscriber Rules Update

Date: 2021-07-06

This is the complete list of rules modified and added in the Sourcefire VRT Certified rule pack for Snort version 2091700.

The format of the file is:

gid:sid <-> Default rule state <-> Message (rule group)

New Rules:


 * 1:57878 <-> DISABLED <-> PROTOCOL-DNS Microsoft Threat Management Gateway heap buffer overflow attempt (protocol-dns.rules)
 * 1:57879 <-> ENABLED <-> INDICATOR-COMPROMISE Revil Kaseya ransomware log clearing http upload (indicator-compromise.rules)

Modified Rules:


 * 1:25312 <-> DISABLED <-> SERVER-OTHER Microsoft Threat Management Gateway heap buffer overflow attempt (server-other.rules)
 * 1:57876 <-> ENABLED <-> OS-WINDOWS Microsoft Windows Print Spooler remote code execution attempt (os-windows.rules)
 * 1:25381 <-> DISABLED <-> SERVER-OTHER Microsoft Threat Management Gateway heap buffer overflow attempt (server-other.rules)
 * 1:57877 <-> ENABLED <-> OS-WINDOWS Microsoft Windows Print Spooler remote code execution attempt (os-windows.rules)
 * 1:42894 <-> ENABLED <-> MALWARE-CNC Win.Trojan.Ursnif variant outbound connection attempt (malware-cnc.rules)

29161

2021-07-06 20:09:34 UTC

Snort Subscriber Rules Update

Date: 2021-07-06

This is the complete list of rules modified and added in the Sourcefire VRT Certified rule pack for Snort version 2091601.

The format of the file is:

gid:sid <-> Default rule state <-> Message (rule group)

New Rules:


 * 1:57878 <-> DISABLED <-> PROTOCOL-DNS Microsoft Threat Management Gateway heap buffer overflow attempt (protocol-dns.rules)
 * 1:57879 <-> ENABLED <-> INDICATOR-COMPROMISE Revil Kaseya ransomware log clearing http upload (indicator-compromise.rules)

Modified Rules:


 * 1:57877 <-> ENABLED <-> OS-WINDOWS Microsoft Windows Print Spooler remote code execution attempt (os-windows.rules)
 * 1:25312 <-> DISABLED <-> SERVER-OTHER Microsoft Threat Management Gateway heap buffer overflow attempt (server-other.rules)
 * 1:25381 <-> DISABLED <-> SERVER-OTHER Microsoft Threat Management Gateway heap buffer overflow attempt (server-other.rules)
 * 1:57876 <-> ENABLED <-> OS-WINDOWS Microsoft Windows Print Spooler remote code execution attempt (os-windows.rules)
 * 1:42894 <-> ENABLED <-> MALWARE-CNC Win.Trojan.Ursnif variant outbound connection attempt (malware-cnc.rules)

29160

2021-07-06 20:09:34 UTC

Snort Subscriber Rules Update

Date: 2021-07-06

This is the complete list of rules modified and added in the Sourcefire VRT Certified rule pack for Snort version 2091600.

The format of the file is:

gid:sid <-> Default rule state <-> Message (rule group)

New Rules:


 * 1:57879 <-> ENABLED <-> INDICATOR-COMPROMISE Revil Kaseya ransomware log clearing http upload (indicator-compromise.rules)
 * 1:57878 <-> DISABLED <-> PROTOCOL-DNS Microsoft Threat Management Gateway heap buffer overflow attempt (protocol-dns.rules)

Modified Rules:


 * 1:25312 <-> DISABLED <-> SERVER-OTHER Microsoft Threat Management Gateway heap buffer overflow attempt (server-other.rules)
 * 1:57877 <-> ENABLED <-> OS-WINDOWS Microsoft Windows Print Spooler remote code execution attempt (os-windows.rules)
 * 1:25381 <-> DISABLED <-> SERVER-OTHER Microsoft Threat Management Gateway heap buffer overflow attempt (server-other.rules)
 * 1:42894 <-> ENABLED <-> MALWARE-CNC Win.Trojan.Ursnif variant outbound connection attempt (malware-cnc.rules)
 * 1:57876 <-> ENABLED <-> OS-WINDOWS Microsoft Windows Print Spooler remote code execution attempt (os-windows.rules)

29151

2021-07-06 20:09:34 UTC

Snort Subscriber Rules Update

Date: 2021-07-06

This is the complete list of rules modified and added in the Sourcefire VRT Certified rule pack for Snort version 2091501.

The format of the file is:

gid:sid <-> Default rule state <-> Message (rule group)

New Rules:


 * 1:57879 <-> ENABLED <-> INDICATOR-COMPROMISE Revil Kaseya ransomware log clearing http upload (indicator-compromise.rules)
 * 1:57878 <-> DISABLED <-> PROTOCOL-DNS Microsoft Threat Management Gateway heap buffer overflow attempt (protocol-dns.rules)

Modified Rules:


 * 1:25312 <-> DISABLED <-> SERVER-OTHER Microsoft Threat Management Gateway heap buffer overflow attempt (server-other.rules)
 * 1:25381 <-> DISABLED <-> SERVER-OTHER Microsoft Threat Management Gateway heap buffer overflow attempt (server-other.rules)
 * 1:57876 <-> ENABLED <-> OS-WINDOWS Microsoft Windows Print Spooler remote code execution attempt (os-windows.rules)
 * 1:42894 <-> ENABLED <-> MALWARE-CNC Win.Trojan.Ursnif variant outbound connection attempt (malware-cnc.rules)
 * 1:57877 <-> ENABLED <-> OS-WINDOWS Microsoft Windows Print Spooler remote code execution attempt (os-windows.rules)

29150

2021-07-06 20:09:34 UTC

Snort Subscriber Rules Update

Date: 2021-07-06

This is the complete list of rules modified and added in the Sourcefire VRT Certified rule pack for Snort version 2091500.

The format of the file is:

gid:sid <-> Default rule state <-> Message (rule group)

New Rules:


 * 1:57878 <-> DISABLED <-> PROTOCOL-DNS Microsoft Threat Management Gateway heap buffer overflow attempt (protocol-dns.rules)
 * 1:57879 <-> ENABLED <-> INDICATOR-COMPROMISE Revil Kaseya ransomware log clearing http upload (indicator-compromise.rules)

Modified Rules:


 * 1:25381 <-> DISABLED <-> SERVER-OTHER Microsoft Threat Management Gateway heap buffer overflow attempt (server-other.rules)
 * 1:57877 <-> ENABLED <-> OS-WINDOWS Microsoft Windows Print Spooler remote code execution attempt (os-windows.rules)
 * 1:57876 <-> ENABLED <-> OS-WINDOWS Microsoft Windows Print Spooler remote code execution attempt (os-windows.rules)
 * 1:25312 <-> DISABLED <-> SERVER-OTHER Microsoft Threat Management Gateway heap buffer overflow attempt (server-other.rules)
 * 1:42894 <-> ENABLED <-> MALWARE-CNC Win.Trojan.Ursnif variant outbound connection attempt (malware-cnc.rules)

29141

2021-07-06 20:09:34 UTC

Snort Subscriber Rules Update

Date: 2021-07-06

This is the complete list of rules modified and added in the Sourcefire VRT Certified rule pack for Snort version 2091401.

The format of the file is:

gid:sid <-> Default rule state <-> Message (rule group)

New Rules:


 * 1:57879 <-> ENABLED <-> INDICATOR-COMPROMISE Revil Kaseya ransomware log clearing http upload (indicator-compromise.rules)
 * 1:57878 <-> DISABLED <-> PROTOCOL-DNS Microsoft Threat Management Gateway heap buffer overflow attempt (protocol-dns.rules)

Modified Rules:


 * 1:42894 <-> ENABLED <-> MALWARE-CNC Win.Trojan.Ursnif variant outbound connection attempt (malware-cnc.rules)
 * 1:25381 <-> DISABLED <-> SERVER-OTHER Microsoft Threat Management Gateway heap buffer overflow attempt (server-other.rules)
 * 1:57876 <-> ENABLED <-> OS-WINDOWS Microsoft Windows Print Spooler remote code execution attempt (os-windows.rules)
 * 1:25312 <-> DISABLED <-> SERVER-OTHER Microsoft Threat Management Gateway heap buffer overflow attempt (server-other.rules)
 * 1:57877 <-> ENABLED <-> OS-WINDOWS Microsoft Windows Print Spooler remote code execution attempt (os-windows.rules)

29130

2021-07-06 20:09:34 UTC

Snort Subscriber Rules Update

Date: 2021-07-06

This is the complete list of rules modified and added in the Sourcefire VRT Certified rule pack for Snort version 2091300.

The format of the file is:

gid:sid <-> Default rule state <-> Message (rule group)

New Rules:


 * 1:57879 <-> ENABLED <-> INDICATOR-COMPROMISE Revil Kaseya ransomware log clearing http upload (indicator-compromise.rules)
 * 1:57878 <-> DISABLED <-> PROTOCOL-DNS Microsoft Threat Management Gateway heap buffer overflow attempt (protocol-dns.rules)

Modified Rules:


 * 1:57877 <-> ENABLED <-> OS-WINDOWS Microsoft Windows Print Spooler remote code execution attempt (os-windows.rules)
 * 1:57876 <-> ENABLED <-> OS-WINDOWS Microsoft Windows Print Spooler remote code execution attempt (os-windows.rules)
 * 1:42894 <-> ENABLED <-> MALWARE-CNC Win.Trojan.Ursnif variant outbound connection attempt (malware-cnc.rules)
 * 1:25381 <-> DISABLED <-> SERVER-OTHER Microsoft Threat Management Gateway heap buffer overflow attempt (server-other.rules)
 * 1:25312 <-> DISABLED <-> SERVER-OTHER Microsoft Threat Management Gateway heap buffer overflow attempt (server-other.rules)

29111

2021-07-06 20:09:34 UTC

Snort Subscriber Rules Update

Date: 2021-07-06

This is the complete list of rules modified and added in the Sourcefire VRT Certified rule pack for Snort version 2091101.

The format of the file is:

gid:sid <-> Default rule state <-> Message (rule group)

New Rules:


 * 1:57878 <-> DISABLED <-> PROTOCOL-DNS Microsoft Threat Management Gateway heap buffer overflow attempt (protocol-dns.rules)
 * 1:57879 <-> ENABLED <-> INDICATOR-COMPROMISE Revil Kaseya ransomware log clearing http upload (indicator-compromise.rules)

Modified Rules:


 * 1:57877 <-> ENABLED <-> OS-WINDOWS Microsoft Windows Print Spooler remote code execution attempt (os-windows.rules)
 * 1:25381 <-> DISABLED <-> SERVER-OTHER Microsoft Threat Management Gateway heap buffer overflow attempt (server-other.rules)
 * 1:25312 <-> DISABLED <-> SERVER-OTHER Microsoft Threat Management Gateway heap buffer overflow attempt (server-other.rules)
 * 1:57876 <-> ENABLED <-> OS-WINDOWS Microsoft Windows Print Spooler remote code execution attempt (os-windows.rules)
 * 1:42894 <-> ENABLED <-> MALWARE-CNC Win.Trojan.Ursnif variant outbound connection attempt (malware-cnc.rules)

3000

2021-07-06 20:09:34 UTC

Snort Subscriber Rules Update

Date: 2021-07-06

This is the complete list of rules modified and added in the Sourcefire VRT Certified rule pack for Snort version 3000.

The format of the file is:

gid:sid <-> Default rule state <-> Message (rule group)

New Rules:


 * 1:57878 <-> DISABLED <-> PROTOCOL-DNS Microsoft Threat Management Gateway heap buffer overflow attempt (snort3-protocol-dns.rules)
 * 1:57879 <-> ENABLED <-> INDICATOR-COMPROMISE Revil Kaseya ransomware log clearing http upload (snort3-indicator-compromise.rules)

Modified Rules:


 * 1:42894 <-> ENABLED <-> MALWARE-CNC Win.Trojan.Ursnif variant outbound connection attempt (snort3-malware-cnc.rules)
 * 1:25312 <-> DISABLED <-> SERVER-OTHER Microsoft Threat Management Gateway heap buffer overflow attempt (snort3-server-other.rules)
 * 1:57876 <-> ENABLED <-> OS-WINDOWS Microsoft Windows Print Spooler remote code execution attempt (snort3-os-windows.rules)
 * 1:57877 <-> ENABLED <-> OS-WINDOWS Microsoft Windows Print Spooler remote code execution attempt (snort3-os-windows.rules)
 * 1:25381 <-> DISABLED <-> SERVER-OTHER Microsoft Threat Management Gateway heap buffer overflow attempt (snort3-server-other.rules)

2983

2021-07-06 20:09:34 UTC

Snort Subscriber Rules Update

Date: 2021-07-06

This is the complete list of rules modified and added in the Sourcefire VRT Certified rule pack for Snort version 2983.

The format of the file is:

gid:sid <-> Default rule state <-> Message (rule group)

New Rules:


 * 1:57878 <-> DISABLED <-> PROTOCOL-DNS Microsoft Threat Management Gateway heap buffer overflow attempt (protocol-dns.rules)
 * 1:57879 <-> ENABLED <-> INDICATOR-COMPROMISE Revil Kaseya ransomware log clearing http upload (indicator-compromise.rules)

Modified Rules:


 * 1:42894 <-> ENABLED <-> MALWARE-CNC Win.Trojan.Ursnif variant outbound connection attempt (malware-cnc.rules)
 * 1:57876 <-> ENABLED <-> OS-WINDOWS Microsoft Windows Print Spooler remote code execution attempt (os-windows.rules)
 * 1:57877 <-> ENABLED <-> OS-WINDOWS Microsoft Windows Print Spooler remote code execution attempt (os-windows.rules)
 * 1:25312 <-> DISABLED <-> SERVER-OTHER Microsoft Threat Management Gateway heap buffer overflow attempt (server-other.rules)
 * 1:25381 <-> DISABLED <-> SERVER-OTHER Microsoft Threat Management Gateway heap buffer overflow attempt (server-other.rules)

3031

2021-07-06 20:18:05 UTC

Snort Subscriber Rules Update

Date: 2021-07-06-001

This is the complete list of rules modified and added in the Sourcefire VRT Certified rule pack for Snort version 3.0.3.1.

The format of the file is:

gid:sid <-> Message

New Rules:

* 3:41195 <-> PROTOCOL-SNMP Cisco IP routing configuration manipulation via SNMP attempt
* 1:57878 <-> PROTOCOL-DNS Microsoft Threat Management Gateway heap buffer overflow attempt
* 1:57879 <-> INDICATOR-COMPROMISE Revil Kaseya ransomware log clearing http upload

Modified Rules:

* 1:25312 <-> SERVER-OTHER Microsoft Threat Management Gateway heap buffer overflow attempt
* 1:25381 <-> SERVER-OTHER Microsoft Threat Management Gateway heap buffer overflow attempt
* 1:42894 <-> MALWARE-CNC Win.Trojan.Ursnif variant outbound connection attempt
* 1:57876 <-> OS-WINDOWS Microsoft Windows Print Spooler remote code execution attempt
* 1:57877 <-> OS-WINDOWS Microsoft Windows Print Spooler remote code execution attempt

3034

2021-07-06 20:18:05 UTC

Snort Subscriber Rules Update

Date: 2021-07-06-001

This is the complete list of rules modified and added in the Sourcefire VRT Certified rule pack for Snort version 3.0.3.4.

The format of the file is:

gid:sid <-> Message

New Rules:

* 3:41195 <-> PROTOCOL-SNMP Cisco IP routing configuration manipulation via SNMP attempt
* 1:57878 <-> PROTOCOL-DNS Microsoft Threat Management Gateway heap buffer overflow attempt
* 1:57879 <-> INDICATOR-COMPROMISE Revil Kaseya ransomware log clearing http upload

Modified Rules:

* 1:25312 <-> SERVER-OTHER Microsoft Threat Management Gateway heap buffer overflow attempt
* 1:25381 <-> SERVER-OTHER Microsoft Threat Management Gateway heap buffer overflow attempt
* 1:42894 <-> MALWARE-CNC Win.Trojan.Ursnif variant outbound connection attempt
* 1:57876 <-> OS-WINDOWS Microsoft Windows Print Spooler remote code execution attempt
* 1:57877 <-> OS-WINDOWS Microsoft Windows Print Spooler remote code execution attempt

3100

2021-07-06 20:18:05 UTC

Snort Subscriber Rules Update

Date: 2021-07-06-001

This is the complete list of rules modified and added in the Sourcefire VRT Certified rule pack for Snort version 3.1.0.0.

The format of the file is:

gid:sid <-> Message

New Rules:

* 3:41195 <-> PROTOCOL-SNMP Cisco IP routing configuration manipulation via SNMP attempt
* 1:57878 <-> PROTOCOL-DNS Microsoft Threat Management Gateway heap buffer overflow attempt
* 1:57879 <-> INDICATOR-COMPROMISE Revil Kaseya ransomware log clearing http upload

Modified Rules:

* 1:25312 <-> SERVER-OTHER Microsoft Threat Management Gateway heap buffer overflow attempt
* 1:25381 <-> SERVER-OTHER Microsoft Threat Management Gateway heap buffer overflow attempt
* 1:42894 <-> MALWARE-CNC Win.Trojan.Ursnif variant outbound connection attempt
* 1:57876 <-> OS-WINDOWS Microsoft Windows Print Spooler remote code execution attempt
* 1:57877 <-> OS-WINDOWS Microsoft Windows Print Spooler remote code execution attempt

3101

2021-07-06 20:18:05 UTC

Snort Subscriber Rules Update

Date: 2021-07-06-001

This is the complete list of rules modified and added in the Sourcefire VRT Certified rule pack for Snort version 3.1.0.1.

The format of the file is:

gid:sid <-> Message

New Rules:

* 3:41195 <-> PROTOCOL-SNMP Cisco IP routing configuration manipulation via SNMP attempt
* 1:57878 <-> PROTOCOL-DNS Microsoft Threat Management Gateway heap buffer overflow attempt
* 1:57879 <-> INDICATOR-COMPROMISE Revil Kaseya ransomware log clearing http upload

Modified Rules:

* 1:25312 <-> SERVER-OTHER Microsoft Threat Management Gateway heap buffer overflow attempt
* 1:25381 <-> SERVER-OTHER Microsoft Threat Management Gateway heap buffer overflow attempt
* 1:42894 <-> MALWARE-CNC Win.Trojan.Ursnif variant outbound connection attempt
* 1:57876 <-> OS-WINDOWS Microsoft Windows Print Spooler remote code execution attempt
* 1:57877 <-> OS-WINDOWS Microsoft Windows Print Spooler remote code execution attempt

3110

2021-07-06 20:18:05 UTC

Snort Subscriber Rules Update

Date: 2021-07-06-001

This is the complete list of rules modified and added in the Sourcefire VRT Certified rule pack for Snort version 3.1.1.0.

The format of the file is:

gid:sid <-> Message

New Rules:

* 3:41195 <-> PROTOCOL-SNMP Cisco IP routing configuration manipulation via SNMP attempt
* 1:57878 <-> PROTOCOL-DNS Microsoft Threat Management Gateway heap buffer overflow attempt
* 1:57879 <-> INDICATOR-COMPROMISE Revil Kaseya ransomware log clearing http upload

Modified Rules:

* 1:25312 <-> SERVER-OTHER Microsoft Threat Management Gateway heap buffer overflow attempt
* 1:25381 <-> SERVER-OTHER Microsoft Threat Management Gateway heap buffer overflow attempt
* 1:42894 <-> MALWARE-CNC Win.Trojan.Ursnif variant outbound connection attempt
* 1:57876 <-> OS-WINDOWS Microsoft Windows Print Spooler remote code execution attempt
* 1:57877 <-> OS-WINDOWS Microsoft Windows Print Spooler remote code execution attempt

3130

2021-07-06 20:18:05 UTC

Snort Subscriber Rules Update

Date: 2021-07-06-001

This is the complete list of rules modified and added in the Sourcefire VRT Certified rule pack for Snort version 3.1.3.0.

The format of the file is:

gid:sid <-> Message

New Rules:

* 3:41195 <-> PROTOCOL-SNMP Cisco IP routing configuration manipulation via SNMP attempt
* 1:57878 <-> PROTOCOL-DNS Microsoft Threat Management Gateway heap buffer overflow attempt
* 1:57879 <-> INDICATOR-COMPROMISE Revil Kaseya ransomware log clearing http upload

Modified Rules:

* 1:25312 <-> SERVER-OTHER Microsoft Threat Management Gateway heap buffer overflow attempt
* 1:25381 <-> SERVER-OTHER Microsoft Threat Management Gateway heap buffer overflow attempt
* 1:42894 <-> MALWARE-CNC Win.Trojan.Ursnif variant outbound connection attempt
* 1:57876 <-> OS-WINDOWS Microsoft Windows Print Spooler remote code execution attempt
* 1:57877 <-> OS-WINDOWS Microsoft Windows Print Spooler remote code execution attempt

3140

2021-07-06 20:18:05 UTC

Snort Subscriber Rules Update

Date: 2021-07-06-001

This is the complete list of rules modified and added in the Sourcefire VRT Certified rule pack for Snort version 3.1.4.0.

The format of the file is:

gid:sid <-> Message

New Rules:

* 3:41195 <-> PROTOCOL-SNMP Cisco IP routing configuration manipulation via SNMP attempt
* 1:57878 <-> PROTOCOL-DNS Microsoft Threat Management Gateway heap buffer overflow attempt
* 1:57879 <-> INDICATOR-COMPROMISE Revil Kaseya ransomware log clearing http upload

Modified Rules:

* 1:25312 <-> SERVER-OTHER Microsoft Threat Management Gateway heap buffer overflow attempt
* 1:25381 <-> SERVER-OTHER Microsoft Threat Management Gateway heap buffer overflow attempt
* 1:42894 <-> MALWARE-CNC Win.Trojan.Ursnif variant outbound connection attempt
* 1:57876 <-> OS-WINDOWS Microsoft Windows Print Spooler remote code execution attempt
* 1:57877 <-> OS-WINDOWS Microsoft Windows Print Spooler remote code execution attempt

3150

2021-07-06 20:18:06 UTC

Snort Subscriber Rules Update

Date: 2021-07-06-001

This is the complete list of rules modified and added in the Sourcefire VRT Certified rule pack for Snort version 3.1.5.0.

The format of the file is:

gid:sid <-> Message

New Rules:

* 3:41195 <-> PROTOCOL-SNMP Cisco IP routing configuration manipulation via SNMP attempt
* 1:57878 <-> PROTOCOL-DNS Microsoft Threat Management Gateway heap buffer overflow attempt
* 1:57879 <-> INDICATOR-COMPROMISE Revil Kaseya ransomware log clearing http upload

Modified Rules:

* 1:25312 <-> SERVER-OTHER Microsoft Threat Management Gateway heap buffer overflow attempt
* 1:25381 <-> SERVER-OTHER Microsoft Threat Management Gateway heap buffer overflow attempt
* 1:42894 <-> MALWARE-CNC Win.Trojan.Ursnif variant outbound connection attempt
* 1:57876 <-> OS-WINDOWS Microsoft Windows Print Spooler remote code execution attempt
* 1:57877 <-> OS-WINDOWS Microsoft Windows Print Spooler remote code execution attempt

3031

2021-07-07 14:05:54 UTC

Snort Subscriber Rules Update

Date: 2021-07-06-001

This is the complete list of rules modified and added in the Sourcefire VRT Certified rule pack for Snort version 3.0.3.1.

The format of the file is:

gid:sid <-> Message

New Rules:

* 3:41195 <-> PROTOCOL-SNMP Cisco IP routing configuration manipulation via SNMP attempt
* 1:57878 <-> PROTOCOL-DNS Microsoft Threat Management Gateway heap buffer overflow attempt
* 1:57879 <-> INDICATOR-COMPROMISE Revil Kaseya ransomware log clearing http upload

Modified Rules:

* 1:25312 <-> SERVER-OTHER Microsoft Threat Management Gateway heap buffer overflow attempt
* 1:25381 <-> SERVER-OTHER Microsoft Threat Management Gateway heap buffer overflow attempt
* 1:42894 <-> MALWARE-CNC Win.Trojan.Ursnif variant outbound connection attempt
* 1:57876 <-> OS-WINDOWS Microsoft Windows Print Spooler remote code execution attempt
* 1:57877 <-> OS-WINDOWS Microsoft Windows Print Spooler remote code execution attempt

3034

2021-07-07 14:05:54 UTC

Snort Subscriber Rules Update

Date: 2021-07-06-001

This is the complete list of rules modified and added in the Sourcefire VRT Certified rule pack for Snort version 3.0.3.4.

The format of the file is:

gid:sid <-> Message

New Rules:

* 3:41195 <-> PROTOCOL-SNMP Cisco IP routing configuration manipulation via SNMP attempt
* 1:57878 <-> PROTOCOL-DNS Microsoft Threat Management Gateway heap buffer overflow attempt
* 1:57879 <-> INDICATOR-COMPROMISE Revil Kaseya ransomware log clearing http upload

Modified Rules:

* 1:25312 <-> SERVER-OTHER Microsoft Threat Management Gateway heap buffer overflow attempt
* 1:25381 <-> SERVER-OTHER Microsoft Threat Management Gateway heap buffer overflow attempt
* 1:42894 <-> MALWARE-CNC Win.Trojan.Ursnif variant outbound connection attempt
* 1:57876 <-> OS-WINDOWS Microsoft Windows Print Spooler remote code execution attempt
* 1:57877 <-> OS-WINDOWS Microsoft Windows Print Spooler remote code execution attempt

3100

2021-07-07 14:05:54 UTC

Snort Subscriber Rules Update

Date: 2021-07-06-001

This is the complete list of rules modified and added in the Sourcefire VRT Certified rule pack for Snort version 3.1.0.0.

The format of the file is:

gid:sid <-> Message

New Rules:

* 3:41195 <-> PROTOCOL-SNMP Cisco IP routing configuration manipulation via SNMP attempt
* 1:57878 <-> PROTOCOL-DNS Microsoft Threat Management Gateway heap buffer overflow attempt
* 1:57879 <-> INDICATOR-COMPROMISE Revil Kaseya ransomware log clearing http upload

Modified Rules:

* 1:25312 <-> SERVER-OTHER Microsoft Threat Management Gateway heap buffer overflow attempt
* 1:25381 <-> SERVER-OTHER Microsoft Threat Management Gateway heap buffer overflow attempt
* 1:42894 <-> MALWARE-CNC Win.Trojan.Ursnif variant outbound connection attempt
* 1:57876 <-> OS-WINDOWS Microsoft Windows Print Spooler remote code execution attempt
* 1:57877 <-> OS-WINDOWS Microsoft Windows Print Spooler remote code execution attempt

3101

2021-07-07 14:05:54 UTC

Snort Subscriber Rules Update

Date: 2021-07-06-001

This is the complete list of rules modified and added in the Sourcefire VRT Certified rule pack for Snort version 3.1.0.1.

The format of the file is:

gid:sid <-> Message

New Rules:

* 3:41195 <-> PROTOCOL-SNMP Cisco IP routing configuration manipulation via SNMP attempt
* 1:57878 <-> PROTOCOL-DNS Microsoft Threat Management Gateway heap buffer overflow attempt
* 1:57879 <-> INDICATOR-COMPROMISE Revil Kaseya ransomware log clearing http upload

Modified Rules:

* 1:25312 <-> SERVER-OTHER Microsoft Threat Management Gateway heap buffer overflow attempt
* 1:25381 <-> SERVER-OTHER Microsoft Threat Management Gateway heap buffer overflow attempt
* 1:42894 <-> MALWARE-CNC Win.Trojan.Ursnif variant outbound connection attempt
* 1:57876 <-> OS-WINDOWS Microsoft Windows Print Spooler remote code execution attempt
* 1:57877 <-> OS-WINDOWS Microsoft Windows Print Spooler remote code execution attempt

3110

2021-07-07 14:05:55 UTC

Snort Subscriber Rules Update

Date: 2021-07-06-001

This is the complete list of rules modified and added in the Sourcefire VRT Certified rule pack for Snort version 3.1.1.0.

The format of the file is:

gid:sid <-> Message

New Rules:

* 3:41195 <-> PROTOCOL-SNMP Cisco IP routing configuration manipulation via SNMP attempt
* 1:57878 <-> PROTOCOL-DNS Microsoft Threat Management Gateway heap buffer overflow attempt
* 1:57879 <-> INDICATOR-COMPROMISE Revil Kaseya ransomware log clearing http upload

Modified Rules:

* 1:25312 <-> SERVER-OTHER Microsoft Threat Management Gateway heap buffer overflow attempt
* 1:25381 <-> SERVER-OTHER Microsoft Threat Management Gateway heap buffer overflow attempt
* 1:42894 <-> MALWARE-CNC Win.Trojan.Ursnif variant outbound connection attempt
* 1:57876 <-> OS-WINDOWS Microsoft Windows Print Spooler remote code execution attempt
* 1:57877 <-> OS-WINDOWS Microsoft Windows Print Spooler remote code execution attempt

3130

2021-07-07 14:05:55 UTC

Snort Subscriber Rules Update

Date: 2021-07-06-001

This is the complete list of rules modified and added in the Sourcefire VRT Certified rule pack for Snort version 3.1.3.0.

The format of the file is:

gid:sid <-> Message

New Rules:

* 3:41195 <-> PROTOCOL-SNMP Cisco IP routing configuration manipulation via SNMP attempt
* 1:57878 <-> PROTOCOL-DNS Microsoft Threat Management Gateway heap buffer overflow attempt
* 1:57879 <-> INDICATOR-COMPROMISE Revil Kaseya ransomware log clearing http upload

Modified Rules:

* 1:25312 <-> SERVER-OTHER Microsoft Threat Management Gateway heap buffer overflow attempt
* 1:25381 <-> SERVER-OTHER Microsoft Threat Management Gateway heap buffer overflow attempt
* 1:42894 <-> MALWARE-CNC Win.Trojan.Ursnif variant outbound connection attempt
* 1:57876 <-> OS-WINDOWS Microsoft Windows Print Spooler remote code execution attempt
* 1:57877 <-> OS-WINDOWS Microsoft Windows Print Spooler remote code execution attempt

3140

2021-07-07 14:05:55 UTC

Snort Subscriber Rules Update

Date: 2021-07-06-001

This is the complete list of rules modified and added in the Sourcefire VRT Certified rule pack for Snort version 3.1.4.0.

The format of the file is:

gid:sid <-> Message

New Rules:

* 3:41195 <-> PROTOCOL-SNMP Cisco IP routing configuration manipulation via SNMP attempt
* 1:57878 <-> PROTOCOL-DNS Microsoft Threat Management Gateway heap buffer overflow attempt
* 1:57879 <-> INDICATOR-COMPROMISE Revil Kaseya ransomware log clearing http upload

Modified Rules:

* 1:25312 <-> SERVER-OTHER Microsoft Threat Management Gateway heap buffer overflow attempt
* 1:25381 <-> SERVER-OTHER Microsoft Threat Management Gateway heap buffer overflow attempt
* 1:42894 <-> MALWARE-CNC Win.Trojan.Ursnif variant outbound connection attempt
* 1:57876 <-> OS-WINDOWS Microsoft Windows Print Spooler remote code execution attempt
* 1:57877 <-> OS-WINDOWS Microsoft Windows Print Spooler remote code execution attempt

3150

2021-07-07 14:05:55 UTC

Snort Subscriber Rules Update

Date: 2021-07-06-001

This is the complete list of rules modified and added in the Sourcefire VRT Certified rule pack for Snort version 3.1.5.0.

The format of the file is:

gid:sid <-> Message

New Rules:

* 3:41195 <-> PROTOCOL-SNMP Cisco IP routing configuration manipulation via SNMP attempt
* 1:57878 <-> PROTOCOL-DNS Microsoft Threat Management Gateway heap buffer overflow attempt
* 1:57879 <-> INDICATOR-COMPROMISE Revil Kaseya ransomware log clearing http upload

Modified Rules:

* 1:25312 <-> SERVER-OTHER Microsoft Threat Management Gateway heap buffer overflow attempt
* 1:25381 <-> SERVER-OTHER Microsoft Threat Management Gateway heap buffer overflow attempt
* 1:42894 <-> MALWARE-CNC Win.Trojan.Ursnif variant outbound connection attempt
* 1:57876 <-> OS-WINDOWS Microsoft Windows Print Spooler remote code execution attempt
* 1:57877 <-> OS-WINDOWS Microsoft Windows Print Spooler remote code execution attempt