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Trojan.Win32.Gentee.b MVID-2021-0072 Insecure Permissions

Trojan.Win32.Gentee.b MVID-2021-0072 Insecure Permissions
Posted Feb 8, 2021
Authored by malvuln | Site malvuln.com

Trojan.Win32.Gentee.b malware suffers from an insecure permissions vulnerability.

tags | exploit, trojan
systems | windows
SHA-256 | 56768f952230d86044b92830f4ef8c29c173270cb1424a6aeda6b25a9810531b

Trojan.Win32.Gentee.b MVID-2021-0072 Insecure Permissions

Change Mirror Download
Discovery / credits: Malvuln - malvuln.com (c) 2021
Original source: https://malvuln.com/advisory/86e63bb63f3baf48ad3bf24c3f5b7e40.txt
Contact: malvuln13@gmail.com
Media: twitter.com/malvuln

Threat: Trojan.Win32.Gentee.b
Vulnerability: Insecure Permissions EoP
Description: Trojan creates a vuln dir under c:\ drive named "WINNT", granting change (C) permissions to the authenticated user group.
Type: PE32
MD5: 86e63bb63f3baf48ad3bf24c3f5b7e40
Vuln ID: MVID-2021-0072
Dropped files: kav31.exe, kav33.exe
Disclosure: 02/06/2021

Exploit/PoC:
C:\>cacls \WINNT
C:\WINNT 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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