""ET TROJAN Observed Malicious SSL Cert (W32/TrojanDownloader.Agent.FBF Variant CnC)""

SID: 2030046

Revision: 2

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_and_Server, created_at 2020_04_29, deployment Perimeter, performance_impact Low, signature_severity Major, tag SSL_Malicious_Cert, updated_at 2020_04_29, mitre_tactic_id TA0042, mitre_tactic_name Resource_Development, mitre_technique_id T1587, mitre_technique_name Develop_Capabilities

Reference:

• md5

• c5a467fa017cf4003768e63115fcddae

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: 443

Destination Network: $HOME_NET

Destination Port: any

Flow: established,to_client

Contents:

• Value: "|55 04 03|"

• Value: "|13|analyticsonline.top"

Within: 20

PCRE:

Special Options:

• fast_pattern

source