""ET TROJAN PlugX UDP CnC Beacon""

SID: 2021791

Revision: 1

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2015_09_17, deployment Perimeter, signature_severity Major, tag c2, updated_at 2015_09_17, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel

Reference:

Protocol: udp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: !53

Flow:

Contents:

  • Value: "|00 00 50 00 02 00 00 00 00 04 00 00 00 10 00 00 00 00 00 00|" Depth: 20

  • Value: !"|00 00|"

  • Value: "|00 00 00 00 00 00 00 00 00 00 00 00 00|"

Within: 13

PCRE:

Special Options:

source