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.

Change logs

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)

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)

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)

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)

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)

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)

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)

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)

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)

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)