""ET SCADA [nsacyber/ELITEWOLF] Schweitzer Engineering Laboratories SEL FTP Server Activity - ERR.TXT File Download Attempt""
SID: 2048678
Revision: 1
Class Type: misc-activity
Metadata: affected_product Schweitzer_Engineering_Laboratories_SEL_Series, attack_target ICS, created_at 2023_10_19, deployment Perimeter, deployment Internal, performance_impact Low, confidence High, signature_severity Minor, updated_at 2023_10_19, reviewed_at 2023_10_19
Reference:
Protocol: tcp
Source Network: any
Source Port: any
Destination Network: $HOME_NET
Destination Port: 21
Flow: established,to_server
Contents:
- Value: "RETR ERR.TXT"
Within:
PCRE:
Special Options:
-
nocase
-
fast_pattern