""ET TROJAN Koadic RC4 Encrypted Payload Inbound M2""

SID: 2054104

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_06_27, deployment Perimeter, malware_family Koadic, confidence High, signature_severity Critical, updated_at 2024_06_27

Reference:

  • md5

  • 2b1aadc3c4eebdd8b4bbd4cbb1fb2468

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: $HTTP_PORTS

Destination Network: $HOME_NET

Destination Port: any

Flow: established,to_client

Contents:

  • Value: "|f9 0d a6 e9 6a 23 a6 ce 25 e9 89 7a 26 ab e4 1f cf 16 49 e2 b8 36 bb 65 b1 3b a9 40|" Depth: 28

Within:

PCRE:

Special Options:

  • file_data

  • fast_pattern

source