""ET CURRENT_EVENTS [Fireeye] Backdoor.HTTP.BEACON.[CSBundle USAToday Server]""
SID: 2031273
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 2020_12_08, deployment Perimeter, signature_severity Major, tag c2, updated_at 2020_12_09, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel
Reference:
Protocol: tcp
Source Network: $EXTERNAL_NET
Source Port: $HTTP_PORTS
Destination Network: $HOME_NET
Destination Port: any
Flow: from_server,established
Contents:
- Value: "{|22|navgd|22 3a 22|ONLY AT USA TODAY:<a class=gnt_n_dd_ls_a href=https|3a|//supportlocal.usatoday.com/"
Within:
PCRE:
Special Options:
- file_data