""ET TROJAN Win32/TA402 Checkin""

SID: 2049158

Revision: 1

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, created_at 2023_10_19, deployment Perimeter, deployment SSLDecrypt, performance_impact Low, confidence High, signature_severity Critical, updated_at 2023_11_13, former_sid 2855435

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

• Value: "POST"

• Value: ".requestinspector.com|0d 0a|"

• Value: "LS0tLS0tLS0gC"

Within:

PCRE: "/LS0tLS0tLS0gC[a-zA-Z0-9+\/]{1,200}(?:KQogLS0tLS0tIApWZXJzaW9uOi|kKIC0tLS0tLSAKVmVyc2lvbjog|pCiAtLS0tLS0gClZlcnNpb246I)/P"

Special Options:

• http_method

• http_header

• http_client_body

• fast_pattern

source