""ET TROJAN Roopy File Grabber Exfiltration Attempt""

SID: 2045174

Revision: 1

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_04_24, deployment Perimeter, malware_family Roopy, performance_impact Low, confidence High, signature_severity Major, updated_at 2023_04_24

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: "|22|n|22 3a 22|"

  • Value: "|22|t|22 3a 22|"

  • Value: "|22|s|22 3a|"

  • Value: "|22|b64|33 3a 22|"

Within:

PCRE:

Special Options:

  • http_method

  • http_client_body

  • http_client_body

  • http_client_body

  • fast_pattern

  • http_client_body

source