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Computer infected by Syazu Trojan

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4 replies to this topic

#1 yourmom2161


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  • Local time:09:08 AM

Posted 08 April 2009 - 01:46 AM

I have a Trojan on my computer that only Malwarebytes detects. It appears as 2 entries. One is a registry file, that appears in localmachine\software\microsoft\windows\currentversion\run. Each time I delete it, it reappears instantly as soon as I refresh it. It is linked to a randomly generated file, currently set to "rundll32.exe "C:\WINDOWS\ezazedes.dll",e".

Navigating to that specific file (which is the other file MWB detects) doesn't let me delete it because it's currently in use. This tells me that it's running along with a process right now - I tried ending rundll32, still nothing. What I've ended up doing every time is renaming it which for some reason works (even though I know it shouldn't) and then deleting it.

Now, the Syazu thing stumped me for a while - I tried closing almost every process as it was clear that something running was continually reinserting it into the registry. Right as I was about to give up, I tried ending explorer.exe and then deleted it. It didn't come back.

However, this doesn't last long. After running explorer again, the registry entry and a new, randomly generated file comes back the same way, and I'm back to where I started. There is obviously something else here that MWB isn't detecting, but I have no idea what it is.

Now, I ran combofix about a week ago a bunch of times because I was trying to get rid of my Userinit.exe, which was infected. Eventually I found someone online to upload his and replaced the infected one, and ever since it hasn't been reported infected. Combofix comes up clean each time. I have also downloaded and tried using "Super Anti-Spyware Free Edition", which came up with around 15 rogue infections, which it immediately detected and deleted. They haven't come back. I've tried deleting the registry and the file again, but it still came back. Here's the MWB log. Any help would be appreciated.

4/8/2009 1:21:16 AM
mbam-log-2009-04-08 (01-21-13).txt

Scan type: Quick Scan
Objects scanned: 50740
Time elapsed: 3 minute(s), 0 second(s)

Memory Processes Infected: 0
Memory Modules Infected: 0
Registry Keys Infected: 0
Registry Values Infected: 1
Registry Data Items Infected: 0
Folders Infected: 0
Files Infected: 1

Memory Processes Infected:
(No malicious items detected)

Memory Modules Infected:
(No malicious items detected)

Registry Keys Infected:
(No malicious items detected)

Registry Values Infected:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\syazu (Trojan.Agent) -> No action taken.

Registry Data Items Infected:
(No malicious items detected)

Folders Infected:
(No malicious items detected)

Files Infected:
C:\WINDOWS\ezazedes.dll (Trojan.Agent) -> No action taken.

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#2 Guest_superbird_*


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Posted 08 April 2009 - 01:43 PM


Please go to Kaspersky website and perform an online antivirus scan.

Note: If you are using Windows Vista, open your browser by right-clicking on its icon and select 'Run as administrator' to perform this scan.
  • Read through the requirements and privacy statement and click on Accept button.
  • It will start downloading and installing the scanner and virus definitions. You will be prompted to install an application from Kaspersky. Click Run.
  • When the downloads have finished, click on Settings.
  • Make sure these boxes are checked (ticked). If they are not, please tick them and click on the Save button:
    • Spyware, Adware, Dialers, and other potentially dangerous programs
  • Click on My Computer under Scan.
  • Once the scan is complete, it will display the results. Click on View Scan Report.
  • You will see a list of infected items there. Click on Save Report As....
  • Save this report to a convenient place. Change the Files of type to Text file (.txt) before clicking on the Save button.
  • Please post this log in your next reply along with a fresh HijackThis log.
If you need a tutorial, see here

#3 yourmom2161

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Posted 08 April 2009 - 05:40 PM

Each time I try using that online scanner, whether it be Firefox 3 or IE 6 I get a BSoD.

#4 Guest_superbird_*


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Posted 09 April 2009 - 12:41 AM


I'm going to redirect you to the HijackThissection of this forum. This, because it's a deeper infection.
Read this page and follow it's steps: http://www.bleepingcomputer.com/forums/t/34773/preparation-guide-for-use-before-using-malware-removal-tools-and-requesting-help/

Good luck. :thumbsup:

#5 Orange Blossom

Orange Blossom

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  • Local time:09:08 AM

Posted 09 April 2009 - 06:24 PM

Hello yourmom2161,

Now that you have a log posted here: http://www.bleepingcomputer.com/forums/t/217983/infected-with-syazu-trojan/ you should NOT make further changes to your computer (install/uninstall programs, use special fix tools, delete files, edit the registry, etc) unless advised by a HJT Team member, nor should you continue to ask for help elsewhere. Doing so can result in system changes which may not show in the log you already posted. Further, any modifications you make on your own may cause confusion for the helper assisting you and could complicate the malware removal process which would extend the time it takes to clean your computer.

From this point on the HJT Team should be the only members that you take advice from, until they have verified your log as clean.

Please be patient. It may take a while to get a response because the HJT Team members are EXTREMELY busy working logs posted before yours. They are volunteers who will help you out as soon as possible. Once you have made your post and are waiting, please DO NOT make another reply until it has been responded to by a member of the HJT Team. Generally the staff checks the forum for postings that have 0 replies as this makes it easier for them to identify those who have not been helped. If you post another response there will be 1 reply. A team member, looking for a new log to work may assume another HJT Team member is already assisting you and not open the thread to respond.

To avoid confusion, I am closing this topic. Good luck with your log.

Orange Blossom :thumbsup:
Help us help you. If HelpBot replies, you MUST follow step 1 in its reply so we know you need help.

Orange Blossom

An ounce of prevention is worth a pound of cure

SpywareBlaster, WinPatrol Plus, ESET Internet Security, NoScript Firefox ext.


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