Trojan-Spy.Win32.SpyEyes.auwl / Insecure Permissions EoP

[malvuln <malvuln13 () gmail com>]

Discovery / credits: Malvuln - malvuln.com (c) 2021
Original source:
https://malvuln.com/advisory/0115ba22a0d009a13d0748027dd62e2a.txt
Contact: malvuln13 () gmail com
Media: twitter.com/malvuln

Threat: Trojan-Spy.Win32.SpyEyes.auwl
Vulnerability: Insecure Permissions EoP
Description: SpyEyes creates a vuln dir named "cleansweep.exe" under
c:\ drive and drops an exe inside also named "cleansweep.exe". The
vulnerable trojan grants change (C) permissions to authenticated users
group.
Type: PE32
MD5: 0115ba22a0d009a13d0748027dd62e2a
Vuln ID: MVID-2021-0075
Dropped files: cleansweep.exe, config.bin
Disclosure: 02/06/2021

Exploit/PoC:
C:\>cacls \cleansweep.exe
C:\cleansweep.exe 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


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