""ET TROJAN APT Operation Sidecopy lnk Activity (GET)""

SID: 2033153

Revision: 2

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2021_06_21, deployment Perimeter, deployment SSLDecrypt, performance_impact Low, signature_severity Major, updated_at 2021_06_21

Reference:

  • md5

  • e05468aaa0c436e953116989ccf9703b

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: "/font/js/images/" Depth: 16

  • Value: "/css"

  • Value: ".in|0d 0a|"

  • Value: !"Referer|3a 20|"

Within:

PCRE: "/\x3a\x20[^\r\n]+\r\nHost\x3a\x20[^\r\n]+\r\nConnection\x3a\x20[^\r\n]+[\r\n]+$/H"

Special Options:

  • http_method

  • fast_pattern

  • http_uri

  • http_uri

  • http_header

  • http_header

source