""ET TROJAN Win32/Gasti.tm Checkin Activity""

SID: 2034678

Revision: 2

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2021_12_13, deployment Perimeter, signature_severity Major, tag RAT, updated_at 2021_12_13

Reference:

  • md5

  • 0b7504c8770d109f0bc326c1dd4cbee4

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: "form|2d|data|3b 20|name|3d 22|file|22 3b 20|filename|3d 22|blob|22 0d 0a|"

  • Value: "name|3d 22|blob|5f|num|22 0d 0a|"

  • Value: "name|3d 22|blob|5f|num|22|name|3d 22|total|5f|blob|5f|num|22 0d 0a|"

  • Value: "name|3d 22|hashCode|22 0d 0a 0d 0a|"

  • Value: "|0d 0a 2d 2d|"

Within: 4

PCRE:

Special Options:

  • http_method

  • http_client_body

  • http_client_body

  • http_client_body

  • http_client_body

  • http_client_body

source