""ET TROJAN Umbra/Multibot Loader User-Agent (umbra)""
SID: 2016366
Revision: 1
Class Type: trojan-activity
Metadata: created_at 2013_02_08, updated_at 2013_02_08
Reference:
Protocol: tcp
Source Network: $HOME_NET
Source Port: any
Destination Network: $EXTERNAL_NET
Destination Port: $HTTP_PORTS
Flow: established,to_server
Contents:
- Value: "User-Agent|3a| umbra|0d 0a|"
Within:
PCRE:
Special Options:
- http_header