""ET TROJAN Sharik/Smoke CnC Beacon 7""

SID: 2025119

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 2017_12_05, deployment Perimeter, signature_severity Major, tag Smoke_Loader, tag c2, updated_at 2017_12_15, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel

Reference:

• md5

• 7e604b9e059d054d58c91330d4d88c62

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: "/" Depth: 1

• Value: "/"

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

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

Within:

PCRE: "/^[\x20-\x7e\r\n]{0,20}[^\x20-\x7e\r\n]/P"

Special Options:

• http_method

• http_uri

• http_uri

• http_header

• fast_pattern

• http_header

source