Backdoor.Win32.DarkKomet.apcc / Insecure Permissions

2021.02.19
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/8c82de32ab2b407451b9fc054c09f717.txt Contact: malvuln13@gmail.com Media: twitter.com/malvuln Threat: Backdoor.Win32.DarkKomet.apcc Vulnerability: Insecure Permissions Description: DarkKomet.apcc creates an insecure directory under c:\ drive granting change (C) permissions to the authenticated user group and drops an EXE named "msdcsc.exe" in that dir. Type: PE32 MD5: 8c82de32ab2b407451b9fc054c09f717 Vuln ID: MVID-2021-0098 Dropped files: msdcsc.exe Disclosure: 02/18/2021 Exploit/PoC: C:\>cacls \MSDCSC C:\MSDCSC 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 \MSDCSC Volume in drive C has no label. Directory of C:\MSDCSC .. 06/16/2012 12:27 PM 1,097,728 msdcsc.exe 1 File(s) 1,097,728 bytes 2 Dir(s) 48,289,648,640 bytes free 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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