""ET TROJAN Possible W32/Citadel Download From CnC Server Self Referenced /files/ attachment""
SID: 2016742
Revision: 8
Class Type: trojan-activity
Metadata: created_at 2013_04_09, former_category MALWARE, updated_at 2022_04_18
Reference:
Protocol: tcp
Source Network: $EXTERNAL_NET
Source Port: $HTTP_PORTS
Destination Network: $HOME_NET
Destination Port: any
Flow: established,to_client
Contents:
- Value: " filename=|22|%2e/files/"
Within:
PCRE: "/\sfilename=\x22\%2e\/files\/[^\x22\x2f\r\n]+?\x22\r\n/H"
Special Options:
-
nocase
-
http_header