""ET TROJAN Successful Cobalt Strike Shellcode Download (x32)""

SID: 2035441

Revision: 3

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_03_11, deployment Perimeter, malware_family Cobalt_Strike, signature_severity Major, updated_at 2023_04_04, reviewed_at 2023_10_16

Reference:

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: $HTTP_PORTS

Destination Network: $HOME_NET

Destination Port: any

Flow: established,to_client

Contents:

  • Value: "200"

  • Value: "|fc e8 89 00 00 00 60 89 e5 31 d2 64 8b 52 30 8b 52 0c 8b|" Depth: 57

Within:

PCRE:

Special Options:

  • http_stat_code

  • file_data

  • fast_pattern

source