Trojan-Spy.Win32.SpyEyes.abdb Insecure Permissions

`Discovery / credits: Malvuln - malvuln.com (c) 2021  
Original source: https://malvuln.com/advisory/9185538b01ad700603f38fb0eb8b6e3b.txt  
Contact: [email protected]  
Media: twitter.com/malvuln  
  
Threat: Trojan-Spy.Win32.SpyEyes.abdb  
Vulnerability: Insecure Permissions   
Description: The malware creates a dir with insecure permissions under c:\ drive and grants change (C) permissions to the authenticated 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: 9185538b01ad700603f38fb0eb8b6e3b  
Vuln ID: MVID-2021-0298  
Disclosure: 07/18/2021  
  
Exploit/PoC:  
C:\>cacls dll.bin  
C:\dll.bin 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 dll.bin  
Volume in drive C has no label.  
  
Directory of C:\dll.bin  
  
06/30/2021 02:08 AM 5,358 744AA42E4B496CC  
02/10/2018 01:21 AM 173,056 C5D92788578.exe  
2 File(s) 178,414 bytes  
  
  
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