""ET TROJAN MSIL/Lightning Stealer Exfil Activity""

SID: 2035679

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 2022_03_31, deployment Perimeter, signature_severity Major, tag Stealer, updated_at 2022_03_31

Reference:

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: "|22|LogChromes|22 3a|"

  • Value: "|22|LogGecko|22 3a|"

  • Value: "|22|Screen|22 3a 7b|"

  • Value: "|22|Width|22 3a 22|"

  • Value: "|22|ScreenshotBase64|22 3a 22|"

  • Value: "Content-Type|3a 20|application/json|0d 0a|"

  • Value: !"User-Agent|3a 20|"

Within:

PCRE:

Special Options:

  • http_method

  • http_client_body

  • http_client_body

  • fast_pattern

  • http_client_body

  • http_client_body

  • http_client_body

  • http_header

  • http_header

source