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Alex NightWatcher: Solved! (5 / 5)

Trojan.Zbot.Win32.190265 also known as Riskware/BlockDNS, Adware.Agent.QFB, Adware.Agent.QFB.

Malware Analysis of Trojan.Zbot.Win32.190265 – DNSBLOCKA.DLL

Created files:

%SYSDIR%\GROUPPOLICY\MACHINE\REGISTRY.POL
%SYSDIR%\DNS.BLOCK
%SYSDIR%\DNSBLOCKA.DLL
%SYSDIR%\DNSBLOCKB.DLL
%SYSDIR%\DNSBLOCKUPDATESVC.EXE

Autostart registry keys:

HKLM\Software\Classes\CLSID\{C654F3FE-8E84-4BB7-87CF-8D9171FC3C73}\InprocServer32\: “%Program Files%\{75866357-6AA5-4197-92C9-CE70980D5AE6}\{E33AB935-4D8B-4D31-B8C4-2097ED5A4AC6}.bin”
HKLM\Software\Microsoft\Windows\CurrentVersion\Group Policy\History\{35378EAC-683F-11D2-A89A-00C04FBBCFA2}\0\DisplayName: “Local Group Policy”
HKLM\Software\Microsoft\Windows\CurrentVersion\Run\DnsBlock: “%Program Files%\DnsBlock\DnsBlockTray.exe”
HKLM\Software\Microsoft\Windows\CurrentVersion\Uninstall\{7b5da7f5-de7d-4e00-b330-a2e08e460095}\DisplayName: “DNSBlock”
HKLM\Software\Microsoft\Windows\CurrentVersion\Uninstall\{7b5da7f5-de7d-4e00-b330-a2e08e460095}\UninstallString: “”%Program Files%\DnsBlock\uninst.exe” uninstall”
HKLM\SYSTEM\CURRENTCONTROLSET\SERVICES\DNSBLOCKUPDATESVC\IMAGEPATH: “%SYSDIR%\DNSBLOCKUPDATESVC.EXE”
HKLM\System\CurrentControlSet\services\DnsBlockUpdateSvc\DisplayName: “DnsBlock Update Service”

Detected by UnHackMe:

DNSBLOCKA.DLL
Default location: %SYSDIR%\DNSBLOCKA.DLL

Dropper hash(md5): a2220aa947b4cb6e25dffbb6b010bdfe

Written by NightWatcher

Malware Hunter.
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