""ET TROJAN Backdoor.Elise Style IP Check M2""
SID: 2030229
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 2020_05_29, deployment Perimeter, signature_severity Major, updated_at 2020_05_29
Reference:
Protocol: tcp
Source Network: $HOME_NET
Source Port: any
Destination Network: $EXTERNAL_NET
Destination Port: $HTTP_PORTS
Flow: to_server,established
Contents:
-
Value: "/myip?format=txt"
-
Value: "api.ipaddress.com|0d 0a|"
-
Value: "User-Agent|3a 20|User-Agent|3a 20|Mozilla/4.0 (compatible|3b 20|MSIE 7.0|3b 20|Win32)"
Within:
PCRE: "/^Connection\x3a\x20[^\r\n]+\r\nUser-Agent\x3a\x20[^\r\n]+\r\nHost\x3a\x20[^\r\n]+[\r\n]+$/Hmi"
Special Options:
-
http_uri
-
http_header
-
fast_pattern
-
http_header