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.

Change logs

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:



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:



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:



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:



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:



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:



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:



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:



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:



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:



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:



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:



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:



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:



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:



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:



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:



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:



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:



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:



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:



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:



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: