Talos Rules 2021-03-03
This release adds and modifies rules in several categories.

Talos has added and modified multiple rules in the file-image, file-office, malware-other 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

29170

2021-03-04 00:07:03 UTC

Snort Subscriber Rules Update

Date: 2021-03-03

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:


 * 1:57247 <-> DISABLED <-> MALWARE-OTHER Win.Ransomware.ColdChristmas variant binary download attempt (malware-other.rules)
 * 1:57248 <-> DISABLED <-> MALWARE-OTHER Win.Ransomware.ColdChristmas variant binary download attempt (malware-other.rules)
 * 1:57251 <-> ENABLED <-> SERVER-MAIL Microsoft Exchange Server certificate leak attempt (server-mail.rules)
 * 1:57252 <-> ENABLED <-> SERVER-MAIL Microsoft Exchange Server arbitrary file write attempt (server-mail.rules)
 * 1:57253 <-> ENABLED <-> SERVER-MAIL Microsoft Exchange Server arbitrary file write attempt (server-mail.rules)
 * 3:57249 <-> ENABLED <-> FILE-IMAGE TRUFFLEHUNTER TALOS-2021-1257 attack attempt (file-image.rules)
 * 3:57250 <-> ENABLED <-> FILE-IMAGE TRUFFLEHUNTER TALOS-2021-1257 attack attempt (file-image.rules)

Modified Rules:


 * 1:57241 <-> ENABLED <-> SERVER-WEBAPP Microsoft Exchange Server server side request forgery attempt (server-webapp.rules)
 * 1:57243 <-> ENABLED <-> SERVER-WEBAPP Microsoft Exchange Server server side request forgery attempt (server-webapp.rules)
 * 1:57244 <-> ENABLED <-> SERVER-WEBAPP Microsoft Exchange Server server side request forgery attempt (server-webapp.rules)
 * 1:57242 <-> ENABLED <-> SERVER-WEBAPP Microsoft Exchange Server server side request forgery attempt (server-webapp.rules)
 * 3:52418 <-> ENABLED <-> FILE-OFFICE TRUFFLEHUNTER TALOS-2019-0968 attack attempt (file-office.rules)
 * 3:52417 <-> ENABLED <-> FILE-OFFICE TRUFFLEHUNTER TALOS-2019-0968 attack attempt (file-office.rules)

29161

2021-03-04 00:07:03 UTC

Snort Subscriber Rules Update

Date: 2021-03-03

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:


 * 1:57253 <-> ENABLED <-> SERVER-MAIL Microsoft Exchange Server arbitrary file write attempt (server-mail.rules)
 * 1:57251 <-> ENABLED <-> SERVER-MAIL Microsoft Exchange Server certificate leak attempt (server-mail.rules)
 * 1:57252 <-> ENABLED <-> SERVER-MAIL Microsoft Exchange Server arbitrary file write attempt (server-mail.rules)
 * 1:57247 <-> DISABLED <-> MALWARE-OTHER Win.Ransomware.ColdChristmas variant binary download attempt (malware-other.rules)
 * 1:57248 <-> DISABLED <-> MALWARE-OTHER Win.Ransomware.ColdChristmas variant binary download attempt (malware-other.rules)
 * 3:57250 <-> ENABLED <-> FILE-IMAGE TRUFFLEHUNTER TALOS-2021-1257 attack attempt (file-image.rules)
 * 3:57249 <-> ENABLED <-> FILE-IMAGE TRUFFLEHUNTER TALOS-2021-1257 attack attempt (file-image.rules)

Modified Rules:


 * 1:57243 <-> ENABLED <-> SERVER-WEBAPP Microsoft Exchange Server server side request forgery attempt (server-webapp.rules)
 * 1:57241 <-> ENABLED <-> SERVER-WEBAPP Microsoft Exchange Server server side request forgery attempt (server-webapp.rules)
 * 1:57242 <-> ENABLED <-> SERVER-WEBAPP Microsoft Exchange Server server side request forgery attempt (server-webapp.rules)
 * 1:57244 <-> ENABLED <-> SERVER-WEBAPP Microsoft Exchange Server server side request forgery attempt (server-webapp.rules)
 * 3:52418 <-> ENABLED <-> FILE-OFFICE TRUFFLEHUNTER TALOS-2019-0968 attack attempt (file-office.rules)
 * 3:52417 <-> ENABLED <-> FILE-OFFICE TRUFFLEHUNTER TALOS-2019-0968 attack attempt (file-office.rules)

29160

2021-03-04 00:07:03 UTC

Snort Subscriber Rules Update

Date: 2021-03-03

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:


 * 1:57248 <-> DISABLED <-> MALWARE-OTHER Win.Ransomware.ColdChristmas variant binary download attempt (malware-other.rules)
 * 1:57251 <-> ENABLED <-> SERVER-MAIL Microsoft Exchange Server certificate leak attempt (server-mail.rules)
 * 1:57252 <-> ENABLED <-> SERVER-MAIL Microsoft Exchange Server arbitrary file write attempt (server-mail.rules)
 * 1:57253 <-> ENABLED <-> SERVER-MAIL Microsoft Exchange Server arbitrary file write attempt (server-mail.rules)
 * 1:57247 <-> DISABLED <-> MALWARE-OTHER Win.Ransomware.ColdChristmas variant binary download attempt (malware-other.rules)
 * 3:57250 <-> ENABLED <-> FILE-IMAGE TRUFFLEHUNTER TALOS-2021-1257 attack attempt (file-image.rules)
 * 3:57249 <-> ENABLED <-> FILE-IMAGE TRUFFLEHUNTER TALOS-2021-1257 attack attempt (file-image.rules)

Modified Rules:


 * 1:57244 <-> ENABLED <-> SERVER-WEBAPP Microsoft Exchange Server server side request forgery attempt (server-webapp.rules)
 * 1:57243 <-> ENABLED <-> SERVER-WEBAPP Microsoft Exchange Server server side request forgery attempt (server-webapp.rules)
 * 1:57242 <-> ENABLED <-> SERVER-WEBAPP Microsoft Exchange Server server side request forgery attempt (server-webapp.rules)
 * 1:57241 <-> ENABLED <-> SERVER-WEBAPP Microsoft Exchange Server server side request forgery attempt (server-webapp.rules)
 * 3:52418 <-> ENABLED <-> FILE-OFFICE TRUFFLEHUNTER TALOS-2019-0968 attack attempt (file-office.rules)
 * 3:52417 <-> ENABLED <-> FILE-OFFICE TRUFFLEHUNTER TALOS-2019-0968 attack attempt (file-office.rules)

29151

2021-03-04 00:07:03 UTC

Snort Subscriber Rules Update

Date: 2021-03-03

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:


 * 1:57251 <-> ENABLED <-> SERVER-MAIL Microsoft Exchange Server certificate leak attempt (server-mail.rules)
 * 1:57247 <-> DISABLED <-> MALWARE-OTHER Win.Ransomware.ColdChristmas variant binary download attempt (malware-other.rules)
 * 1:57252 <-> ENABLED <-> SERVER-MAIL Microsoft Exchange Server arbitrary file write attempt (server-mail.rules)
 * 1:57253 <-> ENABLED <-> SERVER-MAIL Microsoft Exchange Server arbitrary file write attempt (server-mail.rules)
 * 1:57248 <-> DISABLED <-> MALWARE-OTHER Win.Ransomware.ColdChristmas variant binary download attempt (malware-other.rules)
 * 3:57249 <-> ENABLED <-> FILE-IMAGE TRUFFLEHUNTER TALOS-2021-1257 attack attempt (file-image.rules)
 * 3:57250 <-> ENABLED <-> FILE-IMAGE TRUFFLEHUNTER TALOS-2021-1257 attack attempt (file-image.rules)

Modified Rules:


 * 1:57241 <-> ENABLED <-> SERVER-WEBAPP Microsoft Exchange Server server side request forgery attempt (server-webapp.rules)
 * 1:57243 <-> ENABLED <-> SERVER-WEBAPP Microsoft Exchange Server server side request forgery attempt (server-webapp.rules)
 * 1:57242 <-> ENABLED <-> SERVER-WEBAPP Microsoft Exchange Server server side request forgery attempt (server-webapp.rules)
 * 1:57244 <-> ENABLED <-> SERVER-WEBAPP Microsoft Exchange Server server side request forgery attempt (server-webapp.rules)
 * 3:52417 <-> ENABLED <-> FILE-OFFICE TRUFFLEHUNTER TALOS-2019-0968 attack attempt (file-office.rules)
 * 3:52418 <-> ENABLED <-> FILE-OFFICE TRUFFLEHUNTER TALOS-2019-0968 attack attempt (file-office.rules)

29150

2021-03-04 00:07:03 UTC

Snort Subscriber Rules Update

Date: 2021-03-03

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:


 * 1:57253 <-> ENABLED <-> SERVER-MAIL Microsoft Exchange Server arbitrary file write attempt (server-mail.rules)
 * 1:57247 <-> DISABLED <-> MALWARE-OTHER Win.Ransomware.ColdChristmas variant binary download attempt (malware-other.rules)
 * 1:57248 <-> DISABLED <-> MALWARE-OTHER Win.Ransomware.ColdChristmas variant binary download attempt (malware-other.rules)
 * 1:57252 <-> ENABLED <-> SERVER-MAIL Microsoft Exchange Server arbitrary file write attempt (server-mail.rules)
 * 1:57251 <-> ENABLED <-> SERVER-MAIL Microsoft Exchange Server certificate leak attempt (server-mail.rules)
 * 3:57250 <-> ENABLED <-> FILE-IMAGE TRUFFLEHUNTER TALOS-2021-1257 attack attempt (file-image.rules)
 * 3:57249 <-> ENABLED <-> FILE-IMAGE TRUFFLEHUNTER TALOS-2021-1257 attack attempt (file-image.rules)

Modified Rules:


 * 1:57244 <-> ENABLED <-> SERVER-WEBAPP Microsoft Exchange Server server side request forgery attempt (server-webapp.rules)
 * 1:57243 <-> ENABLED <-> SERVER-WEBAPP Microsoft Exchange Server server side request forgery attempt (server-webapp.rules)
 * 1:57242 <-> ENABLED <-> SERVER-WEBAPP Microsoft Exchange Server server side request forgery attempt (server-webapp.rules)
 * 1:57241 <-> ENABLED <-> SERVER-WEBAPP Microsoft Exchange Server server side request forgery attempt (server-webapp.rules)
 * 3:52418 <-> ENABLED <-> FILE-OFFICE TRUFFLEHUNTER TALOS-2019-0968 attack attempt (file-office.rules)
 * 3:52417 <-> ENABLED <-> FILE-OFFICE TRUFFLEHUNTER TALOS-2019-0968 attack attempt (file-office.rules)

29141

2021-03-04 00:07:03 UTC

Snort Subscriber Rules Update

Date: 2021-03-03

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:


 * 1:57251 <-> ENABLED <-> SERVER-MAIL Microsoft Exchange Server certificate leak attempt (server-mail.rules)
 * 1:57248 <-> DISABLED <-> MALWARE-OTHER Win.Ransomware.ColdChristmas variant binary download attempt (malware-other.rules)
 * 1:57247 <-> DISABLED <-> MALWARE-OTHER Win.Ransomware.ColdChristmas variant binary download attempt (malware-other.rules)
 * 1:57252 <-> ENABLED <-> SERVER-MAIL Microsoft Exchange Server arbitrary file write attempt (server-mail.rules)
 * 1:57253 <-> ENABLED <-> SERVER-MAIL Microsoft Exchange Server arbitrary file write attempt (server-mail.rules)
 * 3:57250 <-> ENABLED <-> FILE-IMAGE TRUFFLEHUNTER TALOS-2021-1257 attack attempt (file-image.rules)
 * 3:57249 <-> ENABLED <-> FILE-IMAGE TRUFFLEHUNTER TALOS-2021-1257 attack attempt (file-image.rules)

Modified Rules:


 * 1:57244 <-> ENABLED <-> SERVER-WEBAPP Microsoft Exchange Server server side request forgery attempt (server-webapp.rules)
 * 1:57242 <-> ENABLED <-> SERVER-WEBAPP Microsoft Exchange Server server side request forgery attempt (server-webapp.rules)
 * 1:57241 <-> ENABLED <-> SERVER-WEBAPP Microsoft Exchange Server server side request forgery attempt (server-webapp.rules)
 * 1:57243 <-> ENABLED <-> SERVER-WEBAPP Microsoft Exchange Server server side request forgery attempt (server-webapp.rules)
 * 3:52418 <-> ENABLED <-> FILE-OFFICE TRUFFLEHUNTER TALOS-2019-0968 attack attempt (file-office.rules)
 * 3:52417 <-> ENABLED <-> FILE-OFFICE TRUFFLEHUNTER TALOS-2019-0968 attack attempt (file-office.rules)

29130

2021-03-04 00:07:03 UTC

Snort Subscriber Rules Update

Date: 2021-03-03

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:


 * 1:57248 <-> DISABLED <-> MALWARE-OTHER Win.Ransomware.ColdChristmas variant binary download attempt (malware-other.rules)
 * 1:57252 <-> ENABLED <-> SERVER-MAIL Microsoft Exchange Server arbitrary file write attempt (server-mail.rules)
 * 1:57253 <-> ENABLED <-> SERVER-MAIL Microsoft Exchange Server arbitrary file write attempt (server-mail.rules)
 * 1:57247 <-> DISABLED <-> MALWARE-OTHER Win.Ransomware.ColdChristmas variant binary download attempt (malware-other.rules)
 * 1:57251 <-> ENABLED <-> SERVER-MAIL Microsoft Exchange Server certificate leak attempt (server-mail.rules)
 * 3:57250 <-> ENABLED <-> FILE-IMAGE TRUFFLEHUNTER TALOS-2021-1257 attack attempt (file-image.rules)
 * 3:57249 <-> ENABLED <-> FILE-IMAGE TRUFFLEHUNTER TALOS-2021-1257 attack attempt (file-image.rules)

Modified Rules:


 * 1:57242 <-> ENABLED <-> SERVER-WEBAPP Microsoft Exchange Server server side request forgery attempt (server-webapp.rules)
 * 1:57241 <-> ENABLED <-> SERVER-WEBAPP Microsoft Exchange Server server side request forgery attempt (server-webapp.rules)
 * 1:57244 <-> ENABLED <-> SERVER-WEBAPP Microsoft Exchange Server server side request forgery attempt (server-webapp.rules)
 * 1:57243 <-> ENABLED <-> SERVER-WEBAPP Microsoft Exchange Server server side request forgery attempt (server-webapp.rules)
 * 3:52418 <-> ENABLED <-> FILE-OFFICE TRUFFLEHUNTER TALOS-2019-0968 attack attempt (file-office.rules)
 * 3:52417 <-> ENABLED <-> FILE-OFFICE TRUFFLEHUNTER TALOS-2019-0968 attack attempt (file-office.rules)

29111

2021-03-04 00:07:03 UTC

Snort Subscriber Rules Update

Date: 2021-03-03

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:


 * 1:57251 <-> ENABLED <-> SERVER-MAIL Microsoft Exchange Server certificate leak attempt (server-mail.rules)
 * 1:57252 <-> ENABLED <-> SERVER-MAIL Microsoft Exchange Server arbitrary file write attempt (server-mail.rules)
 * 1:57253 <-> ENABLED <-> SERVER-MAIL Microsoft Exchange Server arbitrary file write attempt (server-mail.rules)
 * 1:57248 <-> DISABLED <-> MALWARE-OTHER Win.Ransomware.ColdChristmas variant binary download attempt (malware-other.rules)
 * 1:57247 <-> DISABLED <-> MALWARE-OTHER Win.Ransomware.ColdChristmas variant binary download attempt (malware-other.rules)
 * 3:57250 <-> ENABLED <-> FILE-IMAGE TRUFFLEHUNTER TALOS-2021-1257 attack attempt (file-image.rules)
 * 3:57249 <-> ENABLED <-> FILE-IMAGE TRUFFLEHUNTER TALOS-2021-1257 attack attempt (file-image.rules)

Modified Rules:


 * 1:57241 <-> ENABLED <-> SERVER-WEBAPP Microsoft Exchange Server server side request forgery attempt (server-webapp.rules)
 * 1:57244 <-> ENABLED <-> SERVER-WEBAPP Microsoft Exchange Server server side request forgery attempt (server-webapp.rules)
 * 1:57242 <-> ENABLED <-> SERVER-WEBAPP Microsoft Exchange Server server side request forgery attempt (server-webapp.rules)
 * 1:57243 <-> ENABLED <-> SERVER-WEBAPP Microsoft Exchange Server server side request forgery attempt (server-webapp.rules)
 * 3:52417 <-> ENABLED <-> FILE-OFFICE TRUFFLEHUNTER TALOS-2019-0968 attack attempt (file-office.rules)
 * 3:52418 <-> ENABLED <-> FILE-OFFICE TRUFFLEHUNTER TALOS-2019-0968 attack attempt (file-office.rules)

3000

2021-03-04 00:07:03 UTC

Snort Subscriber Rules Update

Date: 2021-03-03

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:


 * 1:57247 <-> DISABLED <-> MALWARE-OTHER Win.Ransomware.ColdChristmas variant binary download attempt (snort3-malware-other.rules)
 * 1:57253 <-> ENABLED <-> SERVER-MAIL Microsoft Exchange Server arbitrary file write attempt (snort3-server-mail.rules)
 * 1:57248 <-> DISABLED <-> MALWARE-OTHER Win.Ransomware.ColdChristmas variant binary download attempt (snort3-malware-other.rules)
 * 1:57252 <-> ENABLED <-> SERVER-MAIL Microsoft Exchange Server arbitrary file write attempt (snort3-server-mail.rules)
 * 1:57251 <-> ENABLED <-> SERVER-MAIL Microsoft Exchange Server certificate leak attempt (snort3-server-mail.rules)

Modified Rules:


 * 1:57241 <-> ENABLED <-> SERVER-WEBAPP Microsoft Exchange Server server side request forgery attempt (snort3-server-webapp.rules)
 * 1:57242 <-> ENABLED <-> SERVER-WEBAPP Microsoft Exchange Server server side request forgery attempt (snort3-server-webapp.rules)
 * 1:57244 <-> ENABLED <-> SERVER-WEBAPP Microsoft Exchange Server server side request forgery attempt (snort3-server-webapp.rules)
 * 1:57243 <-> ENABLED <-> SERVER-WEBAPP Microsoft Exchange Server server side request forgery attempt (snort3-server-webapp.rules)

2983

2021-03-04 00:07:03 UTC

Snort Subscriber Rules Update

Date: 2021-03-03

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:


 * 1:57248 <-> DISABLED <-> MALWARE-OTHER Win.Ransomware.ColdChristmas variant binary download attempt (malware-other.rules)
 * 1:57252 <-> ENABLED <-> SERVER-MAIL Microsoft Exchange Server arbitrary file write attempt (server-mail.rules)
 * 1:57253 <-> ENABLED <-> SERVER-MAIL Microsoft Exchange Server arbitrary file write attempt (server-mail.rules)
 * 1:57251 <-> ENABLED <-> SERVER-MAIL Microsoft Exchange Server certificate leak attempt (server-mail.rules)
 * 1:57247 <-> DISABLED <-> MALWARE-OTHER Win.Ransomware.ColdChristmas variant binary download attempt (malware-other.rules)
 * 3:57249 <-> ENABLED <-> FILE-IMAGE TRUFFLEHUNTER TALOS-2021-1257 attack attempt (file-image.rules)
 * 3:57250 <-> ENABLED <-> FILE-IMAGE TRUFFLEHUNTER TALOS-2021-1257 attack attempt (file-image.rules)

Modified Rules:


 * 1:57243 <-> ENABLED <-> SERVER-WEBAPP Microsoft Exchange Server server side request forgery attempt (server-webapp.rules)
 * 1:57244 <-> ENABLED <-> SERVER-WEBAPP Microsoft Exchange Server server side request forgery attempt (server-webapp.rules)
 * 1:57242 <-> ENABLED <-> SERVER-WEBAPP Microsoft Exchange Server server side request forgery attempt (server-webapp.rules)
 * 1:57241 <-> ENABLED <-> SERVER-WEBAPP Microsoft Exchange Server server side request forgery attempt (server-webapp.rules)
 * 3:52417 <-> ENABLED <-> FILE-OFFICE TRUFFLEHUNTER TALOS-2019-0968 attack attempt (file-office.rules)
 * 3:52418 <-> ENABLED <-> FILE-OFFICE TRUFFLEHUNTER TALOS-2019-0968 attack attempt (file-office.rules)