""ET TROJAN Suspected DonotGroup Dropper Activity""

SID: 2033363

Revision: 1

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2021_07_20, deployment Perimeter, performance_impact Low, signature_severity Major, updated_at 2021_07_20

Reference:

  • md5

  • f23dd9acbf28f324b290b970fbc40b30

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: "/@/" Depth: 3

  • Value: "/tele.txt"

  • Value: "Host|3a 20|microsoft-updates.servehttp.com|0d 0a|"

Within:

PCRE:

Special Options:

  • http_method

  • http_uri

  • fast_pattern

  • http_uri

  • http_header

source