Trojan-Dropper.Win32.Krepper.a / Unauthenticated Remote Command Execution

2021.06.24
us malvuln (US) us
Risk: High
Local: No
Remote: Yes
CVE: N/A
CWE: N/A

Discovery / credits: Malvuln - malvuln.com (c) 2021 Original source: https://malvuln.com/advisory/ee699b4055c6199f9826681797d64f0b.txt Contact: malvuln13@gmail.com Media: twitter.com/malvuln Threat: Trojan-Dropper.Win32.Krepper.a Vulnerability: Unauthenticated Remote Command Execution Description: The malware listens on TCP port 10002 and drops several executables under Windows dir. Third-party attackers who can reach infected systems can connect to port 10002 and run commands made available by the backdoor to retrieve information etc Type: PE32 MD5: ee699b4055c6199f9826681797d64f0b Vuln ID: MVID-2021-0260 Dropped files: svchost.exe, sysini.ini, msto32.dll, mserv.exe Disclosure: 06/23/2021 Exploit/PoC: nc64.exe x.x.x.x 10002 C:\WINDOWS C:\WINDOWS\system32 PROC [System Process] System smss.exe csrss.exe wininit.exe csrss.exe winlogon.exe services.exe lsass.exe fontdrvhost.exe fontdrvhost.exe svchost.exe svchost.exe dwm.exe svchost.exe svchost.exe svchost.exe svchost.exe svchost.exe svchost.exe Memory Compression svchost.exe svchost.exe svchost.exe svchost.exe svchost.exe spoolsv.exe svchost.exe WmiPrvSE.exe dasHost.exe svchost.exe svchost.exe etc... 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).


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