""ET ATTACK_RESPONSE Obfuscated Batch Script Inbound M2""

SID: 2034184

Revision: 1

Class Type: misc-attack

Metadata: created_at 2021_10_13, signature_severity Major, updated_at 2021_10_13, mitre_tactic_id TA0005, mitre_tactic_name Defense_Evasion, mitre_technique_id T1027, mitre_technique_name Obfuscated_Files_or_Information

Reference:

• md5

• abd0a49fda67547639eeaced7955a01a

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: $HTTP_PORTS

Destination Network: $HOME_NET

Destination Port: any

Flow: established,from_server

Contents:

• Value: "%%comspec|3a|"

• Value: "%%programfiles|3a|"

• Value: "%commonprogramfiles|3a|"

Within:

PCRE:

Special Options:

• nocase

• nocase

• fast_pattern

source