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Backdoor.Win32.Azbreg.aant MVID-2021-0089 Insecure Permissions

Backdoor.Win32.Azbreg.aant MVID-2021-0089 Insecure Permissions
Posted Feb 16, 2021
Authored by malvuln | Site malvuln.com

Backdoor.Win32.Azbreg.aant malware suffers from an insecure permissions vulnerability.

tags | exploit
systems | windows
SHA-256 | 3f3b586377091c5728cc4ed6050e6e4d141deb1e6711e3fc59e9739723b01122

Backdoor.Win32.Azbreg.aant MVID-2021-0089 Insecure Permissions

Change Mirror Download
Discovery / credits: Malvuln - malvuln.com (c) 2021
Original source: https://malvuln.com/advisory/dcc1855744f2d740745f096e4f031143.txt
Contact: malvuln13@gmail.com
Media: twitter.com/malvuln

Threat: Backdoor.Win32.Azbreg.aant
Vulnerability: Insecure Permissions
Description: Azbreg.aant backdoor creates an insecure dir named "RECYCLER" under c:\ drive, granting change (C) permissions to the authenticated user group.
Type: PE32
MD5: dcc1855744f2d740745f096e4f031143
Vuln ID: MVID-2021-0089
Dropped files:
Disclosure: 02/15/2021


Exploit/PoC:
C:\>cacls RECYCLER
C:\RECYCLER BUILTIN\Administrators:(OI)(CI)(ID)F
NT AUTHORITY\SYSTEM:(OI)(CI)(ID)F
BUILTIN\Users:(OI)(CI)(ID)R
NT AUTHORITY\Authenticated Users:(ID)C
NT AUTHORITY\Authenticated Users:(OI)(CI)(IO)(ID)C


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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