""ET TROJAN W32.Netwire Connectivity Check""
SID: 2034089
Revision: 2
Class Type: trojan-activity
Metadata: attack_target Client_Endpoint, created_at 2021_10_01, deployment Perimeter, signature_severity Major, updated_at 2022_04_18, reviewed_at 2023_08_22
Reference:
Protocol: tcp
Source Network: $HOME_NET
Source Port: any
Destination Network: $EXTERNAL_NET
Destination Port: $HTTP_PORTS
Flow: established,to_server
Contents:
-
Value: "GET"
-
Value: "Mozilla/4.0 (Windows NT 6.1|3b 20|WOW64|3b 20|Trident/7.0|3b 20|rv|3a|11.0) like Gecko|0d 0a|"
-
Value: "checkip.dyndns.org|0d 0a|"
-
Value: !"Referer|3a 20|"
Within:
PCRE: "/^Host\x3a\x20[^\r\n]+checkip.dyndns.org/Hmi"
Special Options:
-
http_method
-
http_header
-
http_header
-
fast_pattern
-
http_header