prt47sys.sys - Dangerous
%sysdir%\prt47sys.sys
Jeff's Story:
My PC had gotten a bad rootkit that my ISP antivirus software (powered by McAfee) could not detect, nor could fix.
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Manual removal instructions:
prt47sys.sys is used to hide files, processes and registry.
rdriv.sys is a kernel mode rootkit.
prt47sys.sys tries to terminate antiviral programs installed on a user computer.
Rootkit contacts remote hacker server using HTTP session.
Related files:
%SysDir%\prt47sys.sys
%SysDir%\sysprint.dll
prt47sys.sys is created new system driver:
service name: "prt47sys"
display name: "PRT4701 Printer driver"
Added to registry:
HKLM\SYSTEM\CurrentControlSet\Services\prt47sys\
The following registry entries are set, affecting internet security:
HKLM\SYSTEM\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\
HKLM\SYSTEM\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\
HKLM\SYSTEM\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\
HKLM\SYSTEM\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\
HKLM\SYSTEM\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List
Adds the value:
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\sysprint
DllName
sysprint.dll
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\sysprint
Startup
sysprint
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\sysprint
Impersonate
1
to the Windows startup registry keys.