""ET TROJAN APT/Donot Group Checkin Activity (GET)""
SID: 2034879
Revision: 2
Class Type: attempted-admin
Metadata: attack_target Client_Endpoint, created_at 2022_01_10, deployment Perimeter, malware_family DonotGroup, signature_severity Major, updated_at 2022_01_10
Reference:
Protocol: tcp
Source Network: $HOME_NET
Source Port: any
Destination Network: $EXTERNAL_NET
Destination Port: $HTTP_PORTS
Flow: established,to_server
Contents:
-
Value: "GET /access/fps_ips_cp_ifpcspf_ifis_p HTTP/1.1"
-
Value: !"Referer|3a 20|"
Within:
PCRE: "/^User-Agent\x3a\x20[^\r\n]+\r\nHost\x3a\x20[^\r\n]+[\r\n]+$/H"
Special Options:
-
fast_pattern
-
http_header