""ET TROJAN Win32/RA-based.NCX CnC Checkin""

SID: 2038484

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 2022_08_10, deployment Perimeter, performance_impact Low, signature_severity Major, updated_at 2022_08_10, reviewed_at 2024_08_19

Reference:

  • md5

  • b2b1098602897dc4ca2f886b59e5c50e

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "GET"

  • Value: "/dir/id.php?id=" Depth: 15

  • Value: "&cn="

  • Value: "&un="

  • Value: "&admin="

  • Value: "&comment="

Within:

PCRE: "/^Host\x3a\x20[^\r\n]+\r\nAccept\x3a\x20[^\r\n]+\r\nAccept-Encoding\x3a\x20[^\r\n]+\r\nUser-Agent\x3a\x20[^\r\n]+[\r\n]+$/H"

Special Options:

  • http_method

  • http_uri

  • fast_pattern

  • http_uri

  • http_uri

  • http_uri

  • http_uri

source