""ET TROJAN Observed Malicious SSL Cert (AsyncRAT)""

SID: 2034847

Revision: 2

Class Type: trojan-activity

Metadata: attack_target Client_and_Server, created_at 2021_04_07, deployment Perimeter, malware_family AsyncRAT, performance_impact Low, signature_severity Major, tag SSL_Malicious_Cert, updated_at 2021_04_07, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol

Reference:

  • md5

  • c57460b4d595a97fd37211e5087b2557

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: any

Destination Network: $HOME_NET

Destination Port: any

Flow: established,to_client

Contents:

  • Value: "|55 04 03|"

  • Value: "DcRat Server"

Within: 12

PCRE:

Special Options:

  • fast_pattern

source