""ET TROJAN 000Stealer Data Exfiltration M1""

SID: 2036307

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_04_22, deployment Perimeter, malware_family 000Stealer, performance_impact Low, signature_severity Major, tag c2, updated_at 2022_04_22, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "Content|2d|Type|3a 20|multipart|2f|form|2d|data|3b 20|boundary|3d|"

  • Value: "Content|2d|Disposition|3a 20|form|2d|data|3b 20|name|3d 22|file|22 3b 20|filename|3d 22 5b|"

  • Value: "|5d 20|"

  • Value: "|20 5b|"

  • Value: "|5d 22 0d 0a|Content|2d|Type|3a 20|application|2f|octet|2d|stream|0d 0a 0d 0a|PK|03 04|"

  • Value: "POST|20|/call?key="

Within: 50

PCRE: "/^[a-f0-9]{32}\x20/R"

Special Options:

  • http_header

  • http_client_body

  • http_client_body

  • http_client_body

  • http_client_body

  • fast_pattern

source