-=PCTechTalk=- Re: Help with TROJAN
- From: "Mike" <mikebike@xxxxxxxxx>
- To: pctechtalk@xxxxxxxxxxxxx
- Date: Tue, 25 Jan 2005 13:19:52 -0800
Hi Don,
this is from the fist site
www.sophos.com/virusinfo/analyses/trojhaxdoorh.html
Advanced tab
Troj/Haxdoor-H is a backdoor Trojan that provides unauthorised access to an
infected computer.
The installation executable for Troj/Haxdoor-H drops the following files to
the Windows system folder; i.a3d, draw32.dll, p2.ini, cm.dll, vdnt32.sys,
hm.sys, memlow.sys, wd.sys, klogini.dll (not all of these files will be
installed under Windows 95/98/ME). i.a3d, p2.ini and klogini.dll are
harmless data files.
On NT-based versions of Windows services are created named memlow and vdnt32
(with display names of "LMMngr" and "MemDRV") to run memlow.sys and
vdnt32.sys respectively, creating registry entries under:
HKLM\SYSTEM\CurrentControlSet\Services\memlow\
HKLM\SYSTEM\CurrentControlSet\Services\vdnt32\
The new memlow service has a startup type set to automatic, so that the
service is run automatically on startup.
On NT-based versions of Windows sub-keys of the following new registry entry
are created to load draw32.dll on startup and run the "MemManager" export:
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\draw32\
Under Windows 95/98/ME one of the following sets of registry entries are
created, so that draw32.dll is loaded on startup and the "MemManager" export
called:
HKLM\System\currentcontrolset\control\mprser\
Dllname = draw32.dll
HKLM\System\currentcontrolset\control\mprser\
Entrypoint = "MemManager"
HKLM\System\currentcontrolset\control\mprser\
StackSize = 0
HKLM\System\currentcontrolset\control\MPRServices\
TestService\Dllname = draw32.dll
HKLM\System\currentcontrolset\control\MPRServices\
TestService\Entrypoint = "MemManager"
HKLM\System\currentcontrolset\control\MPRServices\
TestService\StackSize = 0
(the draw32.dll code will be run under the Mprexe system process.)
The following registry entries are also set:
HKLM\SYSTEM\RAdmin\v2.0\Server\Parameters\DisableTrayIcon = 1
HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\
Memory Management\EnforceWriteProtection = 0
HKLM\SYSTEM\CurrentControlSet\Control\Impersonate =
HKLM\SYSTEM\CurrentControlSet\Control\StackSize = 20:8
Troj/Haxdoor-H will delete the following files if they exist:
%SYSTEM%\drivers\klif.sys
%SYSTEM%\drivers\klpf.sys
Troj/Haxdoor-H attempts to disable certain anti-virus and security related
programs and may attempt to prevent itself and its dropped components from
being deleted.
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On 1/25/2005 at 2:05 PM Don Briggs wrote:
Hi Mike,
I have been to all these sites and found nothing about removing Haxdoor-H.
Searching in Google is the first thing I always do when I have a problem.
TomCoyote Forums had an anti-Trojan but did not list it as finding or
removing Haxdoor-H
Thanks again for your help,
Rocky de Dragon
----- Original Message -----
From: "Mike" <mikebike@xxxxxxxxx>
To: <pctechtalk@xxxxxxxxxxxxx>
Sent: Tuesday, January 25, 2005 11:23 AM
Subject: -=PCTechTalk=- Re: Help with TROJAN
Hi Don,
I used Google to find these links;
Sophos virus analysis: Troj/Haxdoor-H
... Virus information Troj/Haxdoor-H. Summary. ... Profile, Name,
Troj/Haxdoor-H. Type,
Trojan. Affected operating systems, Windows. Side effects, ...
www.sophos.com/virusinfo/analyses/trojhaxdoorh.html - 25k - 24 Jan 2005 -
Cached - Similar pages
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- References:
- -=PCTechTalk=- Re: Need help with Microsoft Word please? copying a flowchart
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- -=PCTechTalk=- Re: Need help with Microsoft Word please? copying a flowchart
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- -=PCTechTalk=- Help with TROJAN
- From: Don Briggs
- -=PCTechTalk=- Re: Help with TROJAN
- From: Mike
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- From: Don Briggs
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