Backdoor.Win32.Surila.j malware suffers from an authentication bypass vulnerability.
Discovery / credits: Malvuln - malvuln.com (c) 2021
Original source: https://malvuln.com/advisory/b1cec4b806c71c82bbd9002bdaf21d1f_B.txt
Contact: [email protected]
Vulnerability: Authentication Bypass
Description: The malware listens on random TCP high port numbers typically starting with "1" E.g. 12356, 14985, 13850, 19050, 13137. Third-party attackers who can reach infected systems can logon using any username/password combination.
Vuln ID: MVID-2021-0289
Dropped files: iexp1orer.exe
nc64.exe x.x.x.x 13137
220 Bot Server (Win32)
331 Password required.
230 Login successful. Have fun.
215 UNIX Type: L8
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