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Date: Mon, 1 Mar 2021 10:22:22 -0500
From: malvuln <>
Subject: [FD] Trojan-Spy.Win32.Stealer.osh / Insecure Permissions

Discovery / credits: Malvuln - (c) 2021
Original source:

Threat: Trojan-Spy.Win32.Stealer.osh
Vulnerability: Insecure Permissions
Description: The malware creates an insecure dir named "DESKTOP-2C3IQHO"
under c:\ drive and grants change (C) permissions to the authenticated user
group. Standard users can rename the malware and reboot to disable it or
replace with their own executable to escalate privileges when a privileged
user logs on to the infected machine.
Type: PE32
MD5: d58b1c2f540268bd9dd920455568d45f
Vuln ID: MVID-2021-0117
Dropped files: ApiSetHost.AppExecutionAlias.exe
Disclosure: 03/1/2021

C:\>cacls \DESKTOP-2C3IQHO\scp
C:\DESKTOP-2C3IQHO\scp BUILTIN\Administrators:(OI)(CI)(ID)F
                       NT AUTHORITY\SYSTEM:(OI)(CI)(ID)F
                       NT AUTHORITY\Authenticated Users:(ID)C
                       NT AUTHORITY\Authenticated Users:(OI)(CI)(IO)(ID)C

C:\>dir \DESKTOP-2C3IQHO\scp
 Volume in drive C has no label.

 Directory of C:\DESKTOP-2C3IQHO\scp

02/23/2021  07:41 PM         1,238,020 ApiSetHost.AppExecutionAlias.exe
               1 File(s)      1,238,020 bytes

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