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Backdoor.Win32.Zombam.gen Cross Site Scripting

Backdoor.Win32.Zombam.gen Cross Site Scripting
Posted Jun 11, 2021
Authored by malvuln | Site malvuln.com

Backdoor.Win32.Zombam.gen malware suffers from a cross site scripting vulnerability.

tags | exploit, xss
systems | windows
MD5 | ca8225ecf55fc009491ec97bd9a106ef

Backdoor.Win32.Zombam.gen Cross Site Scripting

Change Mirror Download
Discovery / credits: Malvuln - malvuln.com (c) 2021
Original source: https://malvuln.com/advisory/ff6516c881dee555b0cd253408b64404.txt
Contact: malvuln13@gmail.com
Media: twitter.com/malvuln

Threat: Backdoor.Win32.Zombam.gen
Vulnerability: Cross Site Scripting (XSS)
Description: Zombam malware listens on TCP port 80 and deploys a HTML Web UI for basic remote administration capability. One feature lists running processes on the infected host using a GET request for /proc URL.

E.g.

{ welcome 2 HTTP_RAT infected computer }

menu [running processes] [browse] [computer info] [stop httprat] [have suggestions?] [homepage]

running processez

[System Process]
System [kill]
smss.exe [kill]
csrss.exe [kill]
wininit.exe [kill]
csrss.exe [kill]
winlogon.exe [kill]

The malware fails to sanitize the URL and echoes back user controlled input for the running processes webpages /proc menu link. Third-party attackers can craft malicious HTML links to execute client side code in the security context of the current user if they visit a malicious server or click the infected link.

Type: PE32
MD5: ff6516c881dee555b0cd253408b64404
Vuln ID: MVID-2021-0243
Disclosure: 06/10/2021

Exploit/PoC:
http://x.x.x.x/%3Cscript%3Ealert(%22HYP3RLINX%22)%3C/script%3E&jusched.exe&


Disclaimer: The information contained within this advisory is supplied "as-is" with no warranties or guarantees of fitness of use or otherwise. Permission is hereby granted for the redistribution of this advisory, provided that it is not altered except by reformatting it, and that due credit is given. Permission is explicitly given for insertion in vulnerability databases and similar, provided that due credit is given to the author. The author is not responsible for any misuse of the information contained herein and accepts no responsibility for any damage caused by the use or misuse of this information. The author prohibits any malicious use of security related information or exploits by the author or elsewhere. Do not attempt to download Malware samples. The author of this website takes no responsibility for any kind of damages occurring from improper Malware handling or the downloading of ANY Malware mentioned on this website or elsewhere. All content Copyright (c) Malvuln.com (TM).
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