""ET TROJAN Win32/saolei CnC Host Checkin""

SID: 2054616

Revision: 1

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, tls_state plaintext, created_at 2024_07_19, deployment Perimeter, confidence High, signature_severity Critical, tag c2, updated_at 2024_07_19, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol

Reference:

  • md5

  • c8e6cd1fb6f5dfe1ab548024a7f67043

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "GET"

  • Value: "|2f|shell|2f 3f|par|3d|" Depth: 12

  • Value: "&val="

  • Value: "LS0"

  • Value: !"|0d 0a|User-Agent|3a 20|"

  • Value: !"|0d 0a|Referer|3a 20|"

Within:

PCRE:

Special Options:

  • http_method

  • http_uri

  • fast_pattern

  • http_uri

  • http_uri

  • http_header

  • http_header

source