""ET TROJAN Sharik/Smoke CnC Beacon 12""

SID: 2026555

Revision: 3

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2018_10_25, deployment Perimeter, malware_family Sharik, malware_family SmokeLoader, signature_severity Major, tag c2, updated_at 2018_11_07, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel

Reference:

  • md5

  • 6ccf5004f5bd1ffd26a428961a4baf6e

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: "/"

  • Value: !"."

  • Value: !"&"

  • Value: "Content-Length|3a 20|63|0d 0a|"

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

  • Value: "Connection|3a 20|keep-alive|0d 0a|"

Within:

PCRE: "/Content-Type\x3a\x20[^\r\n]+\r\nAccept\x3a\x20[^\r\n]+\r\nHost\x3a\x20[^\r\n]+\r\nReferer\x3a\x20[^\r\n]+\r\nUser-Agent\x3a\x20[^\r\n]+\r\n/H"

Special Options:

  • http_method

  • http_uri

  • http_uri

  • http_uri

  • http_header

  • fast_pattern

  • http_header

  • http_header

  • nocase

source