Backdoor.Win32.LolBot.gen malware suffers from an insecure permissions vulnerability.
23dd2353048e97f7d6d07fa4113b5a74Discovery / credits: Malvuln - malvuln.com (c) 2021
Original source: https://malvuln.com/advisory/56a93a2a0a4c6a09e2761f2e0351b020.txt
Contact: [email protected]
Media: twitter.com/malvuln
Threat: Backdoor.Win32.LolBot.gen
Vulnerability: Insecure Permissions
Description: The malware creates an executable with insecure permissions under c:\ drive granting 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: 56a93a2a0a4c6a09e2761f2e0351b020
Vuln ID: MVID-2021-0353
Dropped files: "New Folder .exe"
Disclosure: 10/04/2021
Exploit/PoC:
C:\>cacls "New Folder .exe"
C:\New Folder .exe BUILTIN\Administrators:(ID)F
NT AUTHORITY\SYSTEM:(ID)F
BUILTIN\Users:(ID)R
NT AUTHORITY\Authenticated Users:(ID)C
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