Talos Rules 2021-06-30
This release adds and modifies rules in several categories.

[SID] 57876-57877 are being released to cover the exploitation of CVE-2021-1675 in the wild.

Talos has added and modified multiple rules in the malware-other, os-windows and server-webapp 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

2021-06-30 23:05:04 UTC

Snort Subscriber Rules Update

Date: 2021-06-30

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:


 * 1:57873 <-> DISABLED <-> MALWARE-OTHER Win.Ransomware.Babuk payload download attempt (malware-other.rules)
 * 1:57872 <-> ENABLED <-> SERVER-WEBAPP Facade Ignition remote code execution attempt (server-webapp.rules)
 * 1:57874 <-> DISABLED <-> MALWARE-OTHER Win.Ransomware.Babuk payload download attempt (malware-other.rules)
 * 1:57875 <-> DISABLED <-> SERVER-WEBAPP IBM Lotus Domino Web Service denial of service attempt (server-webapp.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)

Modified Rules:


 * 1:17495 <-> DISABLED <-> SERVER-OTHER Squid proxy DNS response spoofing attempt (server-other.rules)

29171

2021-06-30 23:05:04 UTC

Snort Subscriber Rules Update

Date: 2021-06-30

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:


 * 1:57876 <-> 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)
 * 1:57872 <-> ENABLED <-> SERVER-WEBAPP Facade Ignition remote code execution attempt (server-webapp.rules)
 * 1:57874 <-> DISABLED <-> MALWARE-OTHER Win.Ransomware.Babuk payload download attempt (malware-other.rules)
 * 1:57873 <-> DISABLED <-> MALWARE-OTHER Win.Ransomware.Babuk payload download attempt (malware-other.rules)
 * 1:57875 <-> DISABLED <-> SERVER-WEBAPP IBM Lotus Domino Web Service denial of service attempt (server-webapp.rules)

Modified Rules:


 * 1:17495 <-> DISABLED <-> SERVER-OTHER Squid proxy DNS response spoofing attempt (server-other.rules)

29170

2021-06-30 23:05:04 UTC

Snort Subscriber Rules Update

Date: 2021-06-30

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:


 * 1:57872 <-> ENABLED <-> SERVER-WEBAPP Facade Ignition remote code execution attempt (server-webapp.rules)
 * 1:57874 <-> DISABLED <-> MALWARE-OTHER Win.Ransomware.Babuk payload download attempt (malware-other.rules)
 * 1:57873 <-> DISABLED <-> MALWARE-OTHER Win.Ransomware.Babuk payload download attempt (malware-other.rules)
 * 1:57877 <-> ENABLED <-> OS-WINDOWS Microsoft Windows Print Spooler remote code execution attempt (os-windows.rules)
 * 1:57875 <-> DISABLED <-> SERVER-WEBAPP IBM Lotus Domino Web Service denial of service attempt (server-webapp.rules)
 * 1:57876 <-> ENABLED <-> OS-WINDOWS Microsoft Windows Print Spooler remote code execution attempt (os-windows.rules)

Modified Rules:


 * 1:17495 <-> DISABLED <-> SERVER-OTHER Squid proxy DNS response spoofing attempt (server-other.rules)

29161

2021-06-30 23:05:04 UTC

Snort Subscriber Rules Update

Date: 2021-06-30

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:


 * 1:57876 <-> ENABLED <-> OS-WINDOWS Microsoft Windows Print Spooler remote code execution attempt (os-windows.rules)
 * 1:57872 <-> ENABLED <-> SERVER-WEBAPP Facade Ignition remote code execution attempt (server-webapp.rules)
 * 1:57877 <-> ENABLED <-> OS-WINDOWS Microsoft Windows Print Spooler remote code execution attempt (os-windows.rules)
 * 1:57874 <-> DISABLED <-> MALWARE-OTHER Win.Ransomware.Babuk payload download attempt (malware-other.rules)
 * 1:57873 <-> DISABLED <-> MALWARE-OTHER Win.Ransomware.Babuk payload download attempt (malware-other.rules)
 * 1:57875 <-> DISABLED <-> SERVER-WEBAPP IBM Lotus Domino Web Service denial of service attempt (server-webapp.rules)

Modified Rules:


 * 1:17495 <-> DISABLED <-> SERVER-OTHER Squid proxy DNS response spoofing attempt (server-other.rules)

29160

2021-06-30 23:05:04 UTC

Snort Subscriber Rules Update

Date: 2021-06-30

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:


 * 1:57872 <-> ENABLED <-> SERVER-WEBAPP Facade Ignition remote code execution attempt (server-webapp.rules)
 * 1:57874 <-> DISABLED <-> MALWARE-OTHER Win.Ransomware.Babuk payload download attempt (malware-other.rules)
 * 1:57875 <-> DISABLED <-> SERVER-WEBAPP IBM Lotus Domino Web Service denial of service attempt (server-webapp.rules)
 * 1:57877 <-> ENABLED <-> OS-WINDOWS Microsoft Windows Print Spooler remote code execution attempt (os-windows.rules)
 * 1:57873 <-> DISABLED <-> MALWARE-OTHER Win.Ransomware.Babuk payload download attempt (malware-other.rules)
 * 1:57876 <-> ENABLED <-> OS-WINDOWS Microsoft Windows Print Spooler remote code execution attempt (os-windows.rules)

Modified Rules:


 * 1:17495 <-> DISABLED <-> SERVER-OTHER Squid proxy DNS response spoofing attempt (server-other.rules)

29151

2021-06-30 23:05:04 UTC

Snort Subscriber Rules Update

Date: 2021-06-30

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:


 * 1:57876 <-> 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)
 * 1:57874 <-> DISABLED <-> MALWARE-OTHER Win.Ransomware.Babuk payload download attempt (malware-other.rules)
 * 1:57872 <-> ENABLED <-> SERVER-WEBAPP Facade Ignition remote code execution attempt (server-webapp.rules)
 * 1:57873 <-> DISABLED <-> MALWARE-OTHER Win.Ransomware.Babuk payload download attempt (malware-other.rules)
 * 1:57875 <-> DISABLED <-> SERVER-WEBAPP IBM Lotus Domino Web Service denial of service attempt (server-webapp.rules)

Modified Rules:


 * 1:17495 <-> DISABLED <-> SERVER-OTHER Squid proxy DNS response spoofing attempt (server-other.rules)

29150

2021-06-30 23:05:04 UTC

Snort Subscriber Rules Update

Date: 2021-06-30

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:


 * 1:57872 <-> ENABLED <-> SERVER-WEBAPP Facade Ignition remote code execution attempt (server-webapp.rules)
 * 1:57875 <-> DISABLED <-> SERVER-WEBAPP IBM Lotus Domino Web Service denial of service attempt (server-webapp.rules)
 * 1:57873 <-> DISABLED <-> MALWARE-OTHER Win.Ransomware.Babuk payload download attempt (malware-other.rules)
 * 1:57874 <-> DISABLED <-> MALWARE-OTHER Win.Ransomware.Babuk payload download attempt (malware-other.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)

Modified Rules:


 * 1:17495 <-> DISABLED <-> SERVER-OTHER Squid proxy DNS response spoofing attempt (server-other.rules)

29141

2021-06-30 23:05:04 UTC

Snort Subscriber Rules Update

Date: 2021-06-30

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:


 * 1:57872 <-> ENABLED <-> SERVER-WEBAPP Facade Ignition remote code execution attempt (server-webapp.rules)
 * 1:57873 <-> DISABLED <-> MALWARE-OTHER Win.Ransomware.Babuk payload download attempt (malware-other.rules)
 * 1:57875 <-> DISABLED <-> SERVER-WEBAPP IBM Lotus Domino Web Service denial of service attempt (server-webapp.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)
 * 1:57874 <-> DISABLED <-> MALWARE-OTHER Win.Ransomware.Babuk payload download attempt (malware-other.rules)

Modified Rules:


 * 1:17495 <-> DISABLED <-> SERVER-OTHER Squid proxy DNS response spoofing attempt (server-other.rules)

29130

2021-06-30 23:05:04 UTC

Snort Subscriber Rules Update

Date: 2021-06-30

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:


 * 1:57877 <-> 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)
 * 1:57872 <-> ENABLED <-> SERVER-WEBAPP Facade Ignition remote code execution attempt (server-webapp.rules)
 * 1:57875 <-> DISABLED <-> SERVER-WEBAPP IBM Lotus Domino Web Service denial of service attempt (server-webapp.rules)
 * 1:57874 <-> DISABLED <-> MALWARE-OTHER Win.Ransomware.Babuk payload download attempt (malware-other.rules)
 * 1:57873 <-> DISABLED <-> MALWARE-OTHER Win.Ransomware.Babuk payload download attempt (malware-other.rules)

Modified Rules:


 * 1:17495 <-> DISABLED <-> SERVER-OTHER Squid proxy DNS response spoofing attempt (server-other.rules)

29111

2021-06-30 23:05:04 UTC

Snort Subscriber Rules Update

Date: 2021-06-30

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:


 * 1:57874 <-> DISABLED <-> MALWARE-OTHER Win.Ransomware.Babuk payload download attempt (malware-other.rules)
 * 1:57875 <-> DISABLED <-> SERVER-WEBAPP IBM Lotus Domino Web Service denial of service attempt (server-webapp.rules)
 * 1:57877 <-> ENABLED <-> OS-WINDOWS Microsoft Windows Print Spooler remote code execution attempt (os-windows.rules)
 * 1:57872 <-> ENABLED <-> SERVER-WEBAPP Facade Ignition remote code execution attempt (server-webapp.rules)
 * 1:57876 <-> ENABLED <-> OS-WINDOWS Microsoft Windows Print Spooler remote code execution attempt (os-windows.rules)
 * 1:57873 <-> DISABLED <-> MALWARE-OTHER Win.Ransomware.Babuk payload download attempt (malware-other.rules)

Modified Rules:


 * 1:17495 <-> DISABLED <-> SERVER-OTHER Squid proxy DNS response spoofing attempt (server-other.rules)

3000

2021-06-30 23:05:04 UTC

Snort Subscriber Rules Update

Date: 2021-06-30

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:


 * 1:57876 <-> ENABLED <-> OS-WINDOWS Microsoft Windows Print Spooler remote code execution attempt (snort3-os-windows.rules)
 * 1:57874 <-> DISABLED <-> MALWARE-OTHER Win.Ransomware.Babuk payload download attempt (snort3-malware-other.rules)
 * 1:57875 <-> DISABLED <-> SERVER-WEBAPP IBM Lotus Domino Web Service denial of service attempt (snort3-server-webapp.rules)
 * 1:57877 <-> ENABLED <-> OS-WINDOWS Microsoft Windows Print Spooler remote code execution attempt (snort3-os-windows.rules)
 * 1:57872 <-> ENABLED <-> SERVER-WEBAPP Facade Ignition remote code execution attempt (snort3-server-webapp.rules)
 * 1:57873 <-> DISABLED <-> MALWARE-OTHER Win.Ransomware.Babuk payload download attempt (snort3-malware-other.rules)

Modified Rules:


 * 1:17495 <-> DISABLED <-> SERVER-OTHER Squid proxy DNS response spoofing attempt (snort3-server-other.rules)

2983

2021-06-30 23:05:04 UTC

Snort Subscriber Rules Update

Date: 2021-06-30

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:


 * 1:57877 <-> ENABLED <-> OS-WINDOWS Microsoft Windows Print Spooler remote code execution attempt (os-windows.rules)
 * 1:57872 <-> ENABLED <-> SERVER-WEBAPP Facade Ignition remote code execution attempt (server-webapp.rules)
 * 1:57874 <-> DISABLED <-> MALWARE-OTHER Win.Ransomware.Babuk payload download attempt (malware-other.rules)
 * 1:57876 <-> ENABLED <-> OS-WINDOWS Microsoft Windows Print Spooler remote code execution attempt (os-windows.rules)
 * 1:57873 <-> DISABLED <-> MALWARE-OTHER Win.Ransomware.Babuk payload download attempt (malware-other.rules)
 * 1:57875 <-> DISABLED <-> SERVER-WEBAPP IBM Lotus Domino Web Service denial of service attempt (server-webapp.rules)

Modified Rules:


 * 1:17495 <-> DISABLED <-> SERVER-OTHER Squid proxy DNS response spoofing attempt (server-other.rules)

3031

2021-06-30 23:06:28 UTC

Snort Subscriber Rules Update

Date: 2021-06-30-003

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:

* 1:57872 <-> SERVER-WEBAPP Facade Ignition remote code execution attempt
* 1:57873 <-> MALWARE-OTHER Win.Ransomware.Babuk payload download attempt
* 1:57874 <-> MALWARE-OTHER Win.Ransomware.Babuk payload download attempt
* 1:57875 <-> SERVER-WEBAPP IBM Lotus Domino Web Service denial of service 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

Modified Rules:

* 1:17495 <-> SERVER-OTHER Squid proxy DNS response spoofing attempt

3034

2021-06-30 23:06:28 UTC

Snort Subscriber Rules Update

Date: 2021-06-30-003

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:

* 1:57872 <-> SERVER-WEBAPP Facade Ignition remote code execution attempt
* 1:57873 <-> MALWARE-OTHER Win.Ransomware.Babuk payload download attempt
* 1:57874 <-> MALWARE-OTHER Win.Ransomware.Babuk payload download attempt
* 1:57875 <-> SERVER-WEBAPP IBM Lotus Domino Web Service denial of service 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

Modified Rules:

* 1:17495 <-> SERVER-OTHER Squid proxy DNS response spoofing attempt

3100

2021-06-30 23:06:28 UTC

Snort Subscriber Rules Update

Date: 2021-06-30-003

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:

* 1:57872 <-> SERVER-WEBAPP Facade Ignition remote code execution attempt
* 1:57873 <-> MALWARE-OTHER Win.Ransomware.Babuk payload download attempt
* 1:57874 <-> MALWARE-OTHER Win.Ransomware.Babuk payload download attempt
* 1:57875 <-> SERVER-WEBAPP IBM Lotus Domino Web Service denial of service 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

Modified Rules:

* 1:17495 <-> SERVER-OTHER Squid proxy DNS response spoofing attempt

3101

2021-06-30 23:06:28 UTC

Snort Subscriber Rules Update

Date: 2021-06-30-003

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:

* 1:57872 <-> SERVER-WEBAPP Facade Ignition remote code execution attempt
* 1:57873 <-> MALWARE-OTHER Win.Ransomware.Babuk payload download attempt
* 1:57874 <-> MALWARE-OTHER Win.Ransomware.Babuk payload download attempt
* 1:57875 <-> SERVER-WEBAPP IBM Lotus Domino Web Service denial of service 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

Modified Rules:

* 1:17495 <-> SERVER-OTHER Squid proxy DNS response spoofing attempt

3110

2021-06-30 23:06:28 UTC

Snort Subscriber Rules Update

Date: 2021-06-30-003

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:

* 1:57872 <-> SERVER-WEBAPP Facade Ignition remote code execution attempt
* 1:57873 <-> MALWARE-OTHER Win.Ransomware.Babuk payload download attempt
* 1:57874 <-> MALWARE-OTHER Win.Ransomware.Babuk payload download attempt
* 1:57875 <-> SERVER-WEBAPP IBM Lotus Domino Web Service denial of service 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

Modified Rules:

* 1:17495 <-> SERVER-OTHER Squid proxy DNS response spoofing attempt

3130

2021-06-30 23:06:28 UTC

Snort Subscriber Rules Update

Date: 2021-06-30-003

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:

* 1:57872 <-> SERVER-WEBAPP Facade Ignition remote code execution attempt
* 1:57873 <-> MALWARE-OTHER Win.Ransomware.Babuk payload download attempt
* 1:57874 <-> MALWARE-OTHER Win.Ransomware.Babuk payload download attempt
* 1:57875 <-> SERVER-WEBAPP IBM Lotus Domino Web Service denial of service 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

Modified Rules:

* 1:17495 <-> SERVER-OTHER Squid proxy DNS response spoofing attempt

3140

2021-06-30 23:06:28 UTC

Snort Subscriber Rules Update

Date: 2021-06-30-003

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:

* 1:57872 <-> SERVER-WEBAPP Facade Ignition remote code execution attempt
* 1:57873 <-> MALWARE-OTHER Win.Ransomware.Babuk payload download attempt
* 1:57874 <-> MALWARE-OTHER Win.Ransomware.Babuk payload download attempt
* 1:57875 <-> SERVER-WEBAPP IBM Lotus Domino Web Service denial of service 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

Modified Rules:

* 1:17495 <-> SERVER-OTHER Squid proxy DNS response spoofing attempt

3150

2021-06-30 23:06:29 UTC

Snort Subscriber Rules Update

Date: 2021-06-30-003

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:

* 1:57872 <-> SERVER-WEBAPP Facade Ignition remote code execution attempt
* 1:57873 <-> MALWARE-OTHER Win.Ransomware.Babuk payload download attempt
* 1:57874 <-> MALWARE-OTHER Win.Ransomware.Babuk payload download attempt
* 1:57875 <-> SERVER-WEBAPP IBM Lotus Domino Web Service denial of service 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

Modified Rules:

* 1:17495 <-> SERVER-OTHER Squid proxy DNS response spoofing attempt