Discovery / credits: Malvuln - malvuln.com (c) 2021
Original source: https://malvuln.com/advisory/ffa9b76f9549a2c46415c855a0911e8a.txt
Vulnerability: Insecure Permissions
Description: The malware creates an insecure installation dir under "C:\Program Files (x86)" and grants full (F) permissions to the Everyone user group. Standard users can rename the executables 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.
Vuln ID: MVID-2021-0198
C:\>cacls "C:\Program Files (x86)\Cannonnt"
C:\Program Files (x86)\Cannonnt Everyone:(OI)(CI)F
C:\>cd "\Program Files (x86)\Cannonnt"
C:\Program Files (x86)\Cannonnt>dir
Volume in drive C has no label.
Directory of C:\Program Files (x86)\Cannonnt
05/10/2012 05:04 PM 53,248 messenger.exe
05/10/2012 05:04 PM 122,880 rdbms.exe
05/10/2012 05:04 PM 196,608 RDS.exe
05/10/2012 05:04 PM 233,472 windns.exe
4 File(s) 606,208 bytes
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