Discovery / credits: Malvuln - malvuln.com (c) 2022 Original source: https://malvuln.com/advisory/60a7d5e2d446110d84ef65f6a37af0eb.txt Contact: malvuln13@gmail.com Media: twitter.com/malvuln Threat: Email-Worm.Win32.Pluto.b Vulnerability: Insecure Permissions Description: The malware writes a dir and PE files with insecure permissions to 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. Family: Pluto Type: PE32 MD5: 60a7d5e2d446110d84ef65f6a37af0eb Vuln ID: MVID-2022-0547 Disclosure: 04/14/2022 Exploit/PoC: C:\>cacls "My Downloads" C:\My Downloads 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 C:\>dir "My Downloads" Volume in drive C has no label. Directory of C:\My Downloads 02/18/2013 04:39 PM 34,816 Age Of Empires 2 Key Generator.exe 02/18/2013 04:39 PM 34,816 AikaQuest3Hentai Key Generator.exe 02/18/2013 04:39 PM 34,816 AIM Account Stealer ISO - Full Downloader.exe 02/18/2013 04:39 PM 34,816 Battle.net Crack.exe 02/18/2013 04:39 PM 34,816 Black And White ISO - Full Downloader.exe 02/18/2013 04:39 PM 34,816 Civilization 3 Crack.exe 02/18/2013 04:39 PM 34,816 Civilization 3 Full Downloader.exe 02/18/2013 04:39 PM 34,816 Comanche 4 Full Downloader.exe 02/18/2013 04:39 PM 34,816 Comanche 4 ISO - Full Downloader.exe 02/18/2013 04:39 PM 34,816 Combat Flight Simulator 3 Full Downloader.exe 02/18/2013 04:39 PM 34,816 Critical Point Manga game Full Downloader.exe 02/18/2013 04:39 PM 34,816 Critical Point Manga game Patch.exe 02/18/2013 04:39 PM 34,816 Dark Age Of Camelot Shrouded Isles Crack.exe 02/18/2013 04:39 PM 34,816 Dark Age Of Camelot Shrouded Isles Patch.exe 02/18/2013 04:39 PM 34,816 Deadly Dozen Key Generator.exe 02/18/2013 04:39 PM 34,816 Emperor Rise Of the Middle Kingdom Full Downloader.exe 02/18/2013 04:39 PM 34,816 Empire Earth ISO - Full Downloader.exe 02/18/2013 04:39 PM 34,816 F1 Grand Pix 4 Patch.exe 02/18/2013 04:39 PM 34,816 Free Virus Removal Tool From Symantec Full Downloader.exe 02/18/2013 04:39 PM 34,816 Gladiator Full Downloader.exe 02/18/2013 04:39 PM 34,816 Gladiator ISO - Full Downloader.exe 02/18/2013 04:39 PM 34,816 Grand Prix 4 ISO - Full Downloader.exe 02/18/2013 04:39 PM 34,816 Grand Theft Auto 3 Key Generator.exe 02/18/2013 04:39 PM 34,816 GTA3 ISO - Full Downloader.exe 02/18/2013 04:39 PM 34,816 Half Life Blue Shift ISO - Full Downloader.exe 02/18/2013 04:39 PM 34,816 Hard Truck 18 Wheels of Steel Crack.exe 02/18/2013 04:39 PM 34,816 Industry Giant 2 Crack.exe 02/18/2013 04:39 PM 34,816 International Cricket Captain 2003 Full Downloader.exe 02/18/2013 04:39 PM 34,816 KaZaA Spyware Remover Crack.exe 02/18/2013 04:39 PM 34,816 Macromedia Flash 5.0 Patch.exe 02/18/2013 04:39 PM 34,816 Microsoft Office XP (English) Key Generator.exe 02/18/2013 04:39 PM 34,816 MoviezChannelsInstaler ISO - Full Downloader.exe 02/18/2013 04:39 PM 34,816 MS Train Simulator Crack.exe 02/18/2013 04:39 PM 34,816 Prisoner Of War ISO - Full Downloader.exe 02/18/2013 04:39 PM 34,816 Prisoner Of War Patch.exe 02/18/2013 04:39 PM 34,816 Quake 4 BETA ISO - Full Downloader.exe 02/18/2013 04:39 PM 34,816 SIMS Full Downloader.exe 02/18/2013 04:39 PM 34,816 SIMS ISO - Full Downloader.exe 02/18/2013 04:39 PM 34,816 Soldiers Of Anarchy ISO - Full Downloader.exe 02/18/2013 04:39 PM 34,816 Star Wars II Movie Key Generator.exe 02/18/2013 04:39 PM 34,816 Strike Fighter Project 1 Patch.exe 02/18/2013 04:39 PM 34,816 Stronghold Crusader Crack.exe 02/18/2013 04:39 PM 34,816 Sudden Strike 2 Key Generator.exe 02/18/2013 04:39 PM 34,816 The Thing Full Downloader.exe 02/18/2013 04:39 PM 34,816 The Thing Key Generator.exe 02/18/2013 04:39 PM 34,816 Tomb Raider 3 Full Downloader.exe 02/18/2013 04:39 PM 34,816 Warcraft 3 ONLINE Crack.exe 02/18/2013 04:39 PM 34,816 Windows XP Full Downloader.exe 02/18/2013 04:39 PM 34,816 Windows XP ISO - Full Downloader.exe 02/18/2013 04:39 PM 34,816 Zidane-ScreenInstaler Crack.exe 50 File(s) 1,740,800 bytes 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).