Trojan-Downloader.Win32.Genome.qiw / Insecure Permissions

2021.04.08
us malvuln (US) us
Risk: Medium
Local: Yes
Remote: No
CVE: N/A
CWE: N/A

Discovery / credits: Malvuln - malvuln.com (c) 2021 Original source: https://malvuln.com/advisory/5cddc4647fb1c59f5dc7f414ada7fad4.txt Contact: malvuln13@gmail.com Media: twitter.com/malvuln Threat: Trojan-Downloader.Win32.Genome.qiw Vulnerability: Insecure Permissions Description: Genome.qiw creates an insecure dir named "tmp" under c:\ drive and grants change (C) permissions to the authenticated user group. Standard users can rename the executables 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: 5cddc4647fb1c59f5dc7f414ada7fad4 Vuln ID: MVID-2021-0164 Dropped files: 003.exe, BtPlayer_Setup_9999.exe Disclosure: 04/07/2021 Exploit/PoC: C:\>cacls tmp C:\tmp 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 C:\>dir \tmp Volume in drive C has no label. Directory of C:\tmp 09/02/2009 02:59 PM 25,076 003.exe 09/02/2009 02:57 PM 2,218,086 BtPlayer_Setup_9999.exe 2 File(s) 2,243,162 bytes 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).


Vote for this issue:
50%
50%


 

Thanks for you vote!


 

Thanks for you comment!
Your message is in quarantine 48 hours.

Comment it here.


(*) - required fields.  
{{ x.nick }} | Date: {{ x.ux * 1000 | date:'yyyy-MM-dd' }} {{ x.ux * 1000 | date:'HH:mm' }} CET+1
{{ x.comment }}

Copyright 2021, cxsecurity.com

 

Back to Top