Trojan.Win32.Agent.xdtv malware suffers from an insecure permissions vulnerability.
07d0994f65fe6c84a13ec37c8cb643d8Discovery / credits: Malvuln - malvuln.com (c) 2021
Original source: https://malvuln.com/advisory/ffa9b76f9549a2c46415c855a0911e8a.txt
Contact: [email protected]
Media: twitter.com/malvuln
Threat: Trojan.Win32.Agent.xdtv
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.
Type: PE32
MD5: ffa9b76f9549a2c46415c855a0911e8a
Vuln ID: MVID-2021-0198
Disclosure: 05/04/2021
Exploit/PoC:
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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