Talos Rules 2021-09-10
This release adds and modifies rules in several categories.

Talos is releasing enhanced coverage for CVE-2021-40444 in SIDs 58130-58135.

Talos has added and modified multiple rules in the file-office 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

29181

2021-09-10 21:27:18 UTC

Snort Subscriber Rules Update

Date: 2021-09-10

This is the complete list of rules modified and added in the Sourcefire VRT Certified rule pack for Snort version 2091801.

The format of the file is:

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

New Rules:


 * 1:58132 <-> ENABLED <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt (file-office.rules)
 * 1:58133 <-> ENABLED <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt (file-office.rules)
 * 1:58134 <-> ENABLED <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt (file-office.rules)
 * 1:58135 <-> ENABLED <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt (file-office.rules)
 * 3:58131 <-> ENABLED <-> FILE-OFFICE Microsoft MSHTML code execution attempt (file-office.rules)
 * 3:58130 <-> ENABLED <-> FILE-OFFICE Microsoft MSHTML code execution attempt (file-office.rules)

Modified Rules:

29180

2021-09-10 21:27:18 UTC

Snort Subscriber Rules Update

Date: 2021-09-10

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:


 * 1:58135 <-> ENABLED <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt (file-office.rules)
 * 1:58134 <-> ENABLED <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt (file-office.rules)
 * 1:58133 <-> ENABLED <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt (file-office.rules)
 * 1:58132 <-> ENABLED <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt (file-office.rules)
 * 3:58131 <-> ENABLED <-> FILE-OFFICE Microsoft MSHTML code execution attempt (file-office.rules)
 * 3:58130 <-> ENABLED <-> FILE-OFFICE Microsoft MSHTML code execution attempt (file-office.rules)

Modified Rules:

29171

2021-09-10 21:27:18 UTC

Snort Subscriber Rules Update

Date: 2021-09-10

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:


 * 1:58133 <-> ENABLED <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt (file-office.rules)
 * 1:58134 <-> ENABLED <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt (file-office.rules)
 * 1:58135 <-> ENABLED <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt (file-office.rules)
 * 1:58132 <-> ENABLED <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt (file-office.rules)
 * 3:58130 <-> ENABLED <-> FILE-OFFICE Microsoft MSHTML code execution attempt (file-office.rules)
 * 3:58131 <-> ENABLED <-> FILE-OFFICE Microsoft MSHTML code execution attempt (file-office.rules)

Modified Rules:

29170

2021-09-10 21:27:18 UTC

Snort Subscriber Rules Update

Date: 2021-09-10

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:


 * 1:58134 <-> ENABLED <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt (file-office.rules)
 * 1:58132 <-> ENABLED <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt (file-office.rules)
 * 1:58133 <-> ENABLED <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt (file-office.rules)
 * 1:58135 <-> ENABLED <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt (file-office.rules)
 * 3:58130 <-> ENABLED <-> FILE-OFFICE Microsoft MSHTML code execution attempt (file-office.rules)
 * 3:58131 <-> ENABLED <-> FILE-OFFICE Microsoft MSHTML code execution attempt (file-office.rules)

Modified Rules:

29161

2021-09-10 21:27:18 UTC

Snort Subscriber Rules Update

Date: 2021-09-10

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:


 * 1:58133 <-> ENABLED <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt (file-office.rules)
 * 1:58132 <-> ENABLED <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt (file-office.rules)
 * 1:58134 <-> ENABLED <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt (file-office.rules)
 * 1:58135 <-> ENABLED <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt (file-office.rules)
 * 3:58131 <-> ENABLED <-> FILE-OFFICE Microsoft MSHTML code execution attempt (file-office.rules)
 * 3:58130 <-> ENABLED <-> FILE-OFFICE Microsoft MSHTML code execution attempt (file-office.rules)

Modified Rules:

29160

2021-09-10 21:27:19 UTC

Snort Subscriber Rules Update

Date: 2021-09-10

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:


 * 1:58135 <-> ENABLED <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt (file-office.rules)
 * 1:58133 <-> ENABLED <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt (file-office.rules)
 * 1:58134 <-> ENABLED <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt (file-office.rules)
 * 1:58132 <-> ENABLED <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt (file-office.rules)
 * 3:58130 <-> ENABLED <-> FILE-OFFICE Microsoft MSHTML code execution attempt (file-office.rules)
 * 3:58131 <-> ENABLED <-> FILE-OFFICE Microsoft MSHTML code execution attempt (file-office.rules)

Modified Rules:

29151

2021-09-10 21:27:19 UTC

Snort Subscriber Rules Update

Date: 2021-09-10

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:


 * 1:58132 <-> ENABLED <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt (file-office.rules)
 * 1:58133 <-> ENABLED <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt (file-office.rules)
 * 1:58135 <-> ENABLED <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt (file-office.rules)
 * 1:58134 <-> ENABLED <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt (file-office.rules)
 * 3:58130 <-> ENABLED <-> FILE-OFFICE Microsoft MSHTML code execution attempt (file-office.rules)
 * 3:58131 <-> ENABLED <-> FILE-OFFICE Microsoft MSHTML code execution attempt (file-office.rules)

Modified Rules:

29141

2021-09-10 21:27:19 UTC

Snort Subscriber Rules Update

Date: 2021-09-10

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:


 * 1:58132 <-> ENABLED <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt (file-office.rules)
 * 1:58133 <-> ENABLED <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt (file-office.rules)
 * 1:58135 <-> ENABLED <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt (file-office.rules)
 * 1:58134 <-> ENABLED <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt (file-office.rules)
 * 3:58131 <-> ENABLED <-> FILE-OFFICE Microsoft MSHTML code execution attempt (file-office.rules)
 * 3:58130 <-> ENABLED <-> FILE-OFFICE Microsoft MSHTML code execution attempt (file-office.rules)

Modified Rules:

29130

2021-09-10 21:27:19 UTC

Snort Subscriber Rules Update

Date: 2021-09-10

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:


 * 1:58132 <-> ENABLED <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt (file-office.rules)
 * 1:58135 <-> ENABLED <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt (file-office.rules)
 * 1:58133 <-> ENABLED <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt (file-office.rules)
 * 1:58134 <-> ENABLED <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt (file-office.rules)
 * 3:58131 <-> ENABLED <-> FILE-OFFICE Microsoft MSHTML code execution attempt (file-office.rules)
 * 3:58130 <-> ENABLED <-> FILE-OFFICE Microsoft MSHTML code execution attempt (file-office.rules)

Modified Rules:

29111

2021-09-10 21:27:19 UTC

Snort Subscriber Rules Update

Date: 2021-09-10

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:


 * 1:58135 <-> ENABLED <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt (file-office.rules)
 * 1:58134 <-> ENABLED <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt (file-office.rules)
 * 1:58133 <-> ENABLED <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt (file-office.rules)
 * 1:58132 <-> ENABLED <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt (file-office.rules)
 * 3:58131 <-> ENABLED <-> FILE-OFFICE Microsoft MSHTML code execution attempt (file-office.rules)
 * 3:58130 <-> ENABLED <-> FILE-OFFICE Microsoft MSHTML code execution attempt (file-office.rules)

Modified Rules:

3000

2021-09-10 21:27:19 UTC

Snort Subscriber Rules Update

Date: 2021-09-10

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:


 * 1:58135 <-> ENABLED <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt (snort3-file-office.rules)
 * 1:58132 <-> ENABLED <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt (snort3-file-office.rules)
 * 1:58134 <-> ENABLED <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt (snort3-file-office.rules)
 * 1:58133 <-> ENABLED <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt (snort3-file-office.rules)

Modified Rules:

2983

2021-09-10 21:27:19 UTC

Snort Subscriber Rules Update

Date: 2021-09-10

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:


 * 1:58132 <-> ENABLED <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt (file-office.rules)
 * 1:58135 <-> ENABLED <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt (file-office.rules)
 * 1:58134 <-> ENABLED <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt (file-office.rules)
 * 1:58133 <-> ENABLED <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt (file-office.rules)

Modified Rules:

3031

2021-09-10 21:31:44 UTC

Snort Subscriber Rules Update

Date: 2021-09-10-003

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:

* 1:58132 <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt
* 1:58133 <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt
* 1:58134 <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt
* 1:58135 <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt

Modified Rules:

3034

2021-09-10 21:31:44 UTC

Snort Subscriber Rules Update

Date: 2021-09-10-003

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:

* 1:58132 <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt
* 1:58133 <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt
* 1:58134 <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt
* 1:58135 <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt

Modified Rules:

3100

2021-09-10 21:31:44 UTC

Snort Subscriber Rules Update

Date: 2021-09-10-003

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:

* 1:58132 <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt
* 1:58133 <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt
* 1:58134 <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt
* 1:58135 <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt

Modified Rules:

3101

2021-09-10 21:31:44 UTC

Snort Subscriber Rules Update

Date: 2021-09-10-003

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:

* 1:58132 <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt
* 1:58133 <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt
* 1:58134 <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt
* 1:58135 <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt

Modified Rules:

3110

2021-09-10 21:31:44 UTC

Snort Subscriber Rules Update

Date: 2021-09-10-003

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:

* 1:58132 <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt
* 1:58133 <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt
* 1:58134 <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt
* 1:58135 <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt

Modified Rules:

3130

2021-09-10 21:31:44 UTC

Snort Subscriber Rules Update

Date: 2021-09-10-003

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:

* 1:58132 <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt
* 1:58133 <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt
* 1:58134 <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt
* 1:58135 <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt

Modified Rules:

3140

2021-09-10 21:31:44 UTC

Snort Subscriber Rules Update

Date: 2021-09-10-003

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:

* 1:58132 <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt
* 1:58133 <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt
* 1:58134 <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt
* 1:58135 <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt

Modified Rules:

3150

2021-09-10 21:31:44 UTC

Snort Subscriber Rules Update

Date: 2021-09-10-003

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:

* 1:58132 <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt
* 1:58133 <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt
* 1:58134 <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt
* 1:58135 <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt

Modified Rules:

3170

2021-09-10 21:31:44 UTC

Snort Subscriber Rules Update

Date: 2021-09-10-003

This is the complete list of rules modified and added in the Sourcefire VRT Certified rule pack for Snort version 3.1.7.0.

The format of the file is:

gid:sid <-> Message

New Rules:

* 1:58132 <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt
* 1:58133 <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt
* 1:58134 <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt
* 1:58135 <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt

Modified Rules:

3190

2021-09-10 21:31:44 UTC

Snort Subscriber Rules Update

Date: 2021-09-10-003

This is the complete list of rules modified and added in the Sourcefire VRT Certified rule pack for Snort version 3.1.9.0.

The format of the file is:

gid:sid <-> Message

New Rules:

* 1:58132 <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt
* 1:58133 <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt
* 1:58134 <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt
* 1:58135 <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt

Modified Rules:

31110

2021-09-10 21:31:44 UTC

Snort Subscriber Rules Update

Date: 2021-09-10-003

This is the complete list of rules modified and added in the Sourcefire VRT Certified rule pack for Snort version 3.1.11.0.

The format of the file is:

gid:sid <-> Message

New Rules:

* 1:58132 <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt
* 1:58133 <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt
* 1:58134 <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt
* 1:58135 <-> FILE-OFFICE Microsoft MSHTML ActiveX control bypass attempt

Modified Rules: