""ET TROJAN DonotGroup Pult Downloader Activity (POST)""

SID: 2035534

Revision: 2

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2022_03_18, deployment Perimeter, deployment SSLDecrypt, malware_family DonotGroup, signature_severity Major, updated_at 2022_03_18

Reference:

  • md5

  • 765c01936caae2ba1b1b50ae1ed76cc0

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "POST"

  • Value: !".php"

  • Value: "batac=" Depth: 6

  • Value: !"Linux|3b|"

  • Value: !"iPhone|3b|"

  • Value: "Content-Type|3a 20|application/x-www-form-urlencoded|0d 0a|"

  • Value: !"Referer"

Within:

PCRE: "/Content-Type[^\r\n]+\r\nUser-Agent[^\r\n]+\r\nHost[^\r\n]+\r\nContent-Length[^\r\n]+\r\nCache-Control[^\r\n]+\r\n\r\n/Hm"

Special Options:

  • http_method

  • http_uri

  • fast_pattern

  • http_client_body

  • http_header

  • http_header

  • http_header

  • http_header

source