""ET TROJAN Win32/Meimaii Checkin""

SID: 2038666

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_29, deployment Perimeter, performance_impact Low, signature_severity Major, updated_at 2022_08_29, reviewed_at 2024_08_19

Reference:

  • md5

  • 4f8148aa011570d9fc0541ea325e6139

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: "/meimaii/meimaii.html?user=" Depth: 27

  • Value: "&computer="

Within:

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

Special Options:

  • http_method

  • http_uri

  • fast_pattern

  • http_uri

source