""ET MALWARE Win32/RemoteUtilities Checkin via SMTP""
SID: 2031618
Revision: 2
Class Type: trojan-activity
Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2021_02_12, deployment Perimeter, performance_impact Low, signature_severity Minor, updated_at 2021_02_12
Reference:
Protocol: tcp
Source Network: $HOME_NET
Source Port: any
Destination Network: $EXTERNAL_NET
Destination Port: [25,26,587]
Flow: established,to_server
Contents:
-
Value: "|0d 0a|SUQ6"
-
Value: "0J3QsNC30LLQsNC90LjQtSDQutC+0LzQv9GM0Y7RgtC1"
Within:
PCRE:
Special Options:
- fast_pattern