""ET TROJAN Fake Browser Update via Error Page Web Inject""
SID: 2044884
Revision: 1
Class Type: trojan-activity
Metadata: attack_target Client_Endpoint, created_at 2023_04_04, deployment Perimeter, deployment SSLDecrypt, performance_impact Low, confidence Medium, signature_severity Minor, updated_at 2023_04_04
Reference:
Protocol: tcp
Source Network: $EXTERNAL_NET
Source Port: $HTTP_PORTS
Destination Network: $HOME_NET
Destination Port: any
Flow: established,to_client
Contents:
-
Value: "|20 3d 20|window|2e|location|2e|href|3b 0a|if|28|"
-
Value: "|2e|indexOf|28 27|"
-
Value: "|27 29 3c|99|29 0a 7b 0a|eval|28|atob|28 27|"
-
Value: "|27 29 29 3b 7d 2f 2f|eval|28|atob|28 27|"
Within: 20
PCRE:
Special Options:
-
file_data
-
fast_pattern