""ET INFO Likely Hex Encoded Executable as String - Dash Separated""
SID: 2044371
Revision: 1
Class Type: bad-unknown
Metadata: attack_target Client_Endpoint, created_at 2023_02_28, deployment Perimeter, performance_impact Low, confidence High, signature_severity Informational, updated_at 2023_02_28, mitre_tactic_id TA0005, mitre_tactic_name Defense_Evasion, mitre_technique_id T1027, mitre_technique_name Obfuscated_Files_or_Information
Reference:
Protocol: tcp
Source Network: $EXTERNAL_NET
Source Port: $HTTP_PORTS
Destination Network: $HOME_NET
Destination Port: any
Flow: established,to_client
Contents:
-
Value: "4D|2d|5A|2d|"
-
Value: "|2d|50|2d|45|2d|00|2d|00|2d|"
-
Value: "|2d|21|2d|54|2d|68|2d|69|2d|73|2d|20|2d|70|2d|72|2d|6f|2d|67|2d|72|2d|61|2d|6d|2d|"
Within:
PCRE:
Special Options:
-
file_data
-
nocase
-
nocase
-
fast_pattern