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Trojan-Spy.Win32.Ardamax.ocx Insecure Permissions

Trojan-Spy.Win32.Ardamax.ocx Insecure Permissions
Posted Oct 16, 2021
Authored by malvuln | Site malvuln.com

Trojan-Spy.Win32.Ardamax.ocx malware suffers from an insecure permissions vulnerability.

tags | exploit, trojan
systems | windows
MD5 | 1958fc9f88dc93972c6926deb4aa378b

Trojan-Spy.Win32.Ardamax.ocx Insecure Permissions

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Discovery / credits: Malvuln - malvuln.com (c) 2021
Original source: https://malvuln.com/advisory/78a39875a0adb110cf3c7de3a0d1384c.txt
Contact: malvuln13@gmail.com
Media: twitter.com/malvuln

Threat: Trojan-Spy.Win32.Ardamax.ocx
Vulnerability: Insecure Permissions
Description: The malware creates an dir named "MUWOCI" or "28463" with insecure permissions under Windows\SysWOW64 granting full (F) permissions to the Everyone user group. Standard users can rename the executable dropped by the malware to disable it or replace it with their own executable. Then wait for a privileged user to logon to the infected machine to potentially escalate privileges.
Type: PE32
MD5: 78a39875a0adb110cf3c7de3a0d1384c
Vuln ID: MVID-2021-0362
Disclosure: 10/15/2021

Exploit/PoC:
C:\Windows\SysWOW64\MUWOCI>cacls HNI.001
C:\Windows\SysWOW64\MUWOCI\HNI.001 Everyone:(ID)F

C:\Windows\SysWOW64\MUWOCI>cd ..

C:\Windows\SysWOW64>cacls MUWOCI

C:\Windows\SysWOW64\MUWOCI Everyone:F
Everyone:(OI)(CI)(IO)F


C:\Windows\SysWOW64>dir MUWOCI
Volume in drive C has no label.

Directory of C:\Windows\SysWOW64\MUWOCI

10/05/2021 10:11 PM 62,464 HNI.001
1 File(s) 62,464 bytes


C:\Windows\SysWOW64>cacls 28463
C:\Windows\SysWOW64\28463 Everyone:F
Everyone:(OI)(CI)(IO)F


C:\Windows\SysWOW64>dir 28463
Volume in drive C has no label.

Directory of C:\Windows\SysWOW64\28463

10/05/2021 10:17 PM 402,944 AKV.exe
10/05/2021 10:17 PM 482 DQOC.001
10/05/2021 10:17 PM 7,680 DQOC.006
10/05/2021 10:17 PM 5,632 DQOC.007
10/05/2021 10:17 PM 483,840 DQOC.exe
5 File(s) 900,578 bytes


C:\Windows\SysWOW64>cacls 28463
C:\Windows\SysWOW64\28463 Everyone:F
Everyone:(OI)(CI)(IO)F


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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