""ET TROJAN Win32/Caypnamer.A RAT CnC Initial Checkin""

SID: 2038664

Revision: 4

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_and_Server, created_at 2022_08_29, deployment Perimeter, performance_impact Low, signature_severity Major, updated_at 2023_08_22, reviewed_at 2024_04_17

Reference:

  • md5

  • 8a295c02f1ed045a371f5ed945fcfa19

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: any

Flow: established,to_server

Contents:

  • Value: "|60 55 4a 3f 34 29|" Depth: 6

  • Value: "|ce de 00 0e 19 24 2f|"

Within:

PCRE:

Special Options:

  • fast_pattern

source