""ET TROJAN Jaff Ransomware Checkin M1""

SID: 2024290

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 2017_05_11, deployment Perimeter, malware_family Jaff_Ransomware, signature_severity Major, tag Ransomware, updated_at 2017_05_11, mitre_tactic_id TA0040, mitre_tactic_name Impact, mitre_technique_id T1486, mitre_technique_name Data_Encrypted_for_Impact

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: to_server,established

Contents:

  • Value: "GET"

  • Value: "/a5/"

  • Value: "Host|3a 20|" Depth: 6

  • Value: !"User-Agent|3a|"

  • Value: !"Accept"

  • Value: !"Connection|3a 20|"

  • Value: !"Referer|3a|"

  • Value: !"Cache-Control|3a|"

  • Value: "GET /a5/ HTTP/1." Depth: 16

  • Value: "|0d 0a|Host|3a 20|"

Within: 8

PCRE: "/^[a-z0-9-.]+?\x0d\x0a\x0d\x0a$/R"

Special Options:

  • http_method

  • fast_pattern

  • http_uri

  • http_header

  • http_header

  • http_header

  • http_header

  • http_header

  • http_header

source