Discovery / credits: Malvuln - malvuln.com (c) 2021 Original source: https://malvuln.com/advisory/00e1c4a654756dd6c9c81437c01ee3dd.txt Contact: malvuln13@gmail.com Media: twitter.com/malvuln Threat: Trojan-Spy.Win32.WinSpy.wlt Vulnerability: Insecure Permissions Description: WinSpy.wlt trojan drops an four executables, one of them "dlink.exe" listens on TCP port 443. It also creates a dir named "MsPaint" under Program Files (x86), granting full (F) permissions to everyone group. Type: PE32 MD5: 00e1c4a654756dd6c9c81437c01ee3dd Vuln ID: MVID-2021-0087 Dropped files: java.exe, winapp.exe, dlink.exe, RDS.exe, messenger.exe Disclosure: 02/15/2021 Exploit/PoC: C:\>cacls "\Program Files (x86)\MsPaint" C:\Program Files (x86)\MsPaint Everyone:(OI)(CI)F Disclaimer: The information contained within this advisory is supplied "as-is" with no warranties or guarantees of fitness of use or otherwise. Permission is hereby granted for the redistribution of this advisory, provided that it is not altered except by reformatting it, and that due credit is given. Permission is explicitly given for insertion in vulnerability databases and similar, provided that due credit is given to the author. The author is not responsible for any misuse of the information contained herein and accepts no responsibility for any damage caused by the use or misuse of this information. The author prohibits any malicious use of security related information or exploits by the author or elsewhere. Do not attempt to download Malware samples. The author of this website takes no responsibility for any kind of damages occurring from improper Malware handling or the downloading of ANY Malware mentioned on this website or elsewhere. All content Copyright (c) Malvuln.com (TM).