""ET TROJAN TA430/Andariel APT BottomLoader Activity (GET)""
SID: 2049684
Revision: 1
Class Type: trojan-activity
Metadata: attack_target Client_Endpoint, created_at 2023_12_12, deployment Perimeter, performance_impact Low, confidence Medium, signature_severity Major, updated_at 2023_12_12
Reference:
Protocol: tcp
Source Network: $HOME_NET
Source Port: any
Destination Network: $EXTERNAL_NET
Destination Port: any
Flow: established,to_server
Contents:
-
Value: "GET"
-
Value: ".gif?index="
-
Value: "powershell"
-
Value: !"Referer|3a 20|"
Within:
PCRE: "/User-Agent\x3a\x20[^\r\n]+powershell/mi"
Special Options:
-
fast_pattern
-
nocase