""ET TROJAN Win32.Agent.Y!c CnC Checkin""

SID: 2038894

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_09_16, deployment Perimeter, performance_impact Low, signature_severity Major, updated_at 2022_09_16, reviewed_at 2024_08_19

Reference:

  • md5

  • c0b6cbb039bdbd86dcdfce87d059d1c9

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: "/vendas/Cadastra.php?pc=" Depth: 24

  • Value: "&serial="

  • Value: "Indy Library"

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_header

source