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Trojan.Win32.A.Cosmu.94742[h] also known as TrojanDropper:Win32/Agent.LI, Trojan.Cosmu.Win32.6395, Trojan/Cosmu.nms.

Malware Analysis of Trojan.Win32.A.Cosmu.94742[h] – MPLAYERW.EXE

Created files:

%WinDir%\system\Explorer.exe
%WinDir%\system\fndfst32.exe
%WinDir%\system\mplayerw.exe
%WinDir%\system\Sysexp32.exe
%WinDir%\Syssrc32.exe

Autostart registry keys:

HKLM\Software\Classes\txtfile\shell\open\command\: “C:\Windows\System\Sysexp32.exe %1”
HKLM\Software\Classes\txtfile\shell\open\command\Explore: “%SystemRoot%\system32\NOTEPAD.EXE %1”
HKLM\Software\Microsoft\Windows\CurrentVersion\Run\System applets: “C:\Windows\System\applets.exe”
HKLM\Software\Microsoft\Windows\CurrentVersion\Run\Syssrc32: “C:\Windows\Syssrc32.exe”
HKLM\Software\Microsoft\Windows\CurrentVersion\Run\fndfst32: “C:\Windows\System\fndfst32.exe”
HKLM\Software\Microsoft\Windows\CurrentVersion\Run\Explorer Shell: “C:\Windows\System\Explorer.exe”
HKLM\Software\Classes\CLSID\{5C65F4B0-3651-4514-B207-D10CB699B14B}\LocalServer32\: “”%Program Files%\Google\Chrome\Application\47.0.2526.106\delegate_execute.exe””
HKLM\Software\Microsoft\Active Setup\Installed Components\{8A69D345-D564-463c-AFF1-A69D9E530F96}\StubPath: “”%Program Files%\Google\Chrome\Application\47.0.2526.106\Installer\chrmstp.exe” –configure-user-settings –verbose-logging –system-level –multi-install –chrome”
HKLM\Software\Microsoft\Windows\CurrentVersion\Uninstall\Google Chrome\UninstallString: “”%Program Files%\Google\Chrome\Application\47.0.2526.106\Installer\setup.exe” –uninstall –multi-install –chrome –system-level”

Detected by UnHackMe:

MPLAYERW.EXE
Default location: %WinDir%\SYSTEM\MPLAYERW.EXE

Dropper hash(md5): c5c5ce14ac02a2bbbe2a26a703177410

Written by NightWatcher

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