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.

Change logs

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)

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)

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)

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)

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)

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)

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)

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)

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)

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)

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)

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)

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


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


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


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


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


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


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


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