Backdoor.Win32.Noknok.50 Insecure Permissions

Backdoor.Win32.Noknok.50 malware suffers from an insecure permissions vulnerability.


MD5 | 9233b2cdf687f9dc14f44beebe52c0d0

Discovery / credits: Malvuln - malvuln.com (c) 2021
Original source: https://malvuln.com/advisory/ca80897ee064ab9af5907344b316a247.txt
Contact: [email protected]
Media: twitter.com/malvuln

Threat: Backdoor.Win32.Noknok.50
Vulnerability: Insecure Permissions
Description: This trojan creates a dir under C: with change permissions granted to authenticated users group.

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Type: PE32
MD5: ca80897ee064ab9af5907344b316a247
Vuln ID: MVID-2021-0047
Disclosure: 01/23/2021


Exploit/PoC:
C:\>cacls C:\NokNok5
C:\NokNok5 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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