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.

Change logs

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)

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)

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)

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)

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)

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)

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)

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)

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)

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)

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)

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)

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


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


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


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


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


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


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


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


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


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


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


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


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


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


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


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