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Repeated intrusion attempts logged


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#1 Hockeyweasel

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Posted 23 May 2010 - 08:42 AM

Hello,

My PC is running Windows XP SP3 (Build 2600.xpsp_sp3_gdr.100216-1514:Service Pack 3)
Norton Internet Security 2010 is repeatedly giving my warnings of blocked intrusion attempts trying to access \DEVICE\HARDDISKVOLUME1\WINDOWS\SYSTEM32\SVCHOST.EXE
I hadn't noticed before, but also intrusion of \DEVICE\HARDDISKVOLUME1\PROGRAM FILES\MOZILLA FIREFOX\FIREFOX.EXE with less frequency.
There isn't any specific symptom that I would correlate with the appearance of these intrusion notices. No strange behavior.
Sampling of addresses below

HTTPS Tidserv Request 2:
19js810300z.com (91.212.226.67, 443)

202.157.171.207

91.212.226.59

85.12.46.159

7gafd33ja90a.com/KVk1Uqsl5L5YlXC6dmVyPTMuNyZiaWQ9NzM5MjkzZWUtNjcyOC00MGJjLWEwZDEtMjBlN2M2Mjg2MjAyJmFpZD0yMDMwMiZzaWQ9MCZyZD0yMi41LjIwMTAmZW5nPXd3dy5nb29nbGUuY29tJnE9OTEuMjEyLjIyNi41OStpbnRydXNpb24=17g"

n1mo661s6cx0.com/hac1eioD5K5MDdU7dmVyPTMuNyZiaWQ9NzM5MjkzZWUtNjcyOC00MGJjLWEwZDEtMjBlN2M2Mjg2MjAyJmFpZD0yMDMwMiZzaWQ9MCZyZD0yMi41LjIwMTAmZW5nPXd3dy5nb29nbGUuY29tJnE9bGoxaTE2YjAuY29t15k"

I suspect I'm pretty noob at this. Be patient with the walkthrough. I'll look at some of the other threads to get an impression of what all is involved. Thanks for your help.

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#2 MarciH

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Posted 23 May 2010 - 02:16 PM

I like that you posted this in the section "Am I infected? What do I do?" because that is my question.

Sorry I don't have any advice.. just want to say that I'm in the same boat and am asking for help, too. I'm getting the same exact messages, same IP address.
I ran several malware scans including Malwarebytes, Housecall, Spybot, and Norton AntiVirus. Nothing.

Norton is blocking the intrusion attempt, but why is it happening in the first place? Can I stop the intrusion attempt? This happens every few minutes.

Thanks.

#3 chromebuster

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Posted 23 May 2010 - 03:18 PM

Hey folks,
It is good that they are being blocked and not being let through. If they were being let through,, then this would be a different story all together. I can see why it would be annoying to have warnings pop up from antivirus products all the time. It's happened to me as well, but not in a long time. I would think that the reason for no scanners finding malware is because you don't actually have any malware present on your computer. It is stopping it before it is too late. That's one thing to be glad for.

Regards,
Chromebuster

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Some call me The Queen of Cambridge


#4 boopme

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Posted 23 May 2010 - 03:52 PM

To Hockeyweasel and MarciH

Backdoor Tidservis a backdoor trojan.

This allows hackers to remotely control your computer, steal critical system information and download and execute files.

I would counsel you to disconnect this PC from the Internet immediately. If you do any banking or other financial transactions on the PC or if it should contain any other sensitive information, please get to a known clean computer and change all passwords where applicable, and it would be wise to contact those same financial institutions to apprise them of your situation.

Though the trojan has been identified and can be killed, because of it's backdoor functionality, your PC is very likely compromised and there is no way to be sure your computer can ever again be trusted. Many experts in the security community believe that once infected with this type of trojan, the best course of action would be a reformat and reinstall of the OS. Please read these for more information:

How Do I Handle Possible Identify Theft, Internet Fraud and CC Fraud?
When Should I Format, How Should I Reinstall

We can still clean this machine but I can't guarantee that it will be 100% secure afterwards. Let me know what you decide to do.
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#5 Hockeyweasel

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Posted 23 May 2010 - 04:39 PM

My PC is primarily just for using MS Office, storing music and digital photos.
I would be okay with a reformat, if nuking the hard drive is the only way to be sure.

#6 boopme

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Posted 23 May 2010 - 04:45 PM

Ok, well to go the cleaning route...
Please go here....
Preparation Guide ,do steps 6 - 9.

Create a DDS log and post it in the new topic explained in step 9,which is here Virus, Trojan, Spyware, and Malware Removal Logs and not in this topic,thanks.
If Gmer won't run,skip it and move on.
Let me know if that went well.


Between you and I ... Not an unwise decision to make. In some instances an infection may have caused so much damage to your system that it cannot be completely cleaned or repaired. Wiping your drive, reformatting, and performing a clean install of the OS or doing a factory restore removes everything and is the safest action and the choice I would make here.

Reformatting a hard disk deletes all data. If you decide to reformat, you can back up all your important documents, data files and photos. The safest practice is not to backup any autorun.ini or .exe files because they may be infected. Some types of malware may disguise itself by adding and hiding its extension to the existing extension of files so be sure you take a close look at the full name. After reformatting, as a precaution, make sure you scan these files with your anti-virus prior to copying them back to your hard drive.

The best proceedure is a low level format. This completely wipes the drive. Then reinstall the OS.
Use the free version of Active@ KillDisk.
Or Darik's Boot And Nuke

The best sources of Information on this are
Reformatting Windows XP
Michael Stevens Tech
Windows XP: Clean Install

Of course also feel free to ask anything on this in the XP forum. They'd be glad to help.

==============================

2 guidelines/rules when backing up

1) Backup all your important data files, pictures, music, work etc... and save it onto an external hard-drive. These files usually include .doc, .txt, .mp3, .jpg etc...
2) Do not backup any executables files or any window files. These include .exe/.scr/.htm/.html/.xml/.zip/.rar files as they may contain traces of malware. Also, .html or .htm files that are webpages should also be avoided.

Download Belarc Advisor - builds a detailed profile of your installed software and hardware, including Microsoft Hotfixes, and displays the results in your Web browser.
Run it and then print out the results, they may be handy.

Since we don't know exactly which infections we're dealing with here, we should take some precautions before we attempt to move files from the infected machine. Run the following on your clean computer, and make sure you insert your flash drives at the prompt.
Download and Run FlashDisinfector

Please download Flash_Disinfector.exe by sUBs and save it to your desktop.
  • Double-click Flash_Disinfector.exe to run it and follow any prompts that may appear.
  • The utility may ask you to insert your flash drive and/or other removable drives. Please do so and allow the utility to clean up those drives as well.
  • Hold down the Shift key when inserting the drive until Windows detects it to keep autorun.inf from executing if it is present.
  • Wait until it has finished scanning and then exit the program.
  • Reboot your computer when done.
Note: As part of its routine, Flash_Disinfector will create a hidden folder named autorun.inf in each partition and every USB drive that was plugged in when you ran it. Do not delete this folder...it will help protect your drives from future infection by keeping the autorun file from being installed on the root drive and running other malicious files.


Reinstall Windows Vista

Note: Windows 7 Professional instructions recommend you DO NOT use a third-party software to format the drive.
How do I get help? Who is helping me?For the time will come when men will not put up with sound doctrine. Instead, to suit their own desires, they will gather around them a great number of teachers to say what their itching ears want to hear....Become a BleepingComputer fan: Facebook

#7 MarciH

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Posted 23 May 2010 - 05:13 PM

Thanks for the info. Lots to consider. Good luck to hockeyweasel.

Edited by MarciH, 23 May 2010 - 05:25 PM.


#8 Hockeyweasel

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Posted 23 May 2010 - 05:33 PM

I had a similar question to that of MarciH.
Is the blocked intrusion an attempt to activate the trojan?

#9 boopme

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Posted 23 May 2010 - 06:30 PM

To answer you both,I could not be 100 % certain with out the DDS log in the Prep guide I posted earlier.

According to Synmantec when HTTPS Tidserv Request is reported

You should take immediate action to stop any damage or prevent further damage from happening.
This signature detects Backdoor.Tidserv communication with control servers.Additional InformationBackdoor.
Tidserv is a Trojan horse that opens a back door on the compromised computer.


The RobTex report on the link noted in the earlier report 19js810300z.com
Trustworthiness, vendor reliability, privacy and child safety of this site is very poor.
19js810300z.com ("19js810300z") is a domain controlled by two name servers at cnmsn.com. Both are on different IP networks. The primary name server is ns4.cnmsn.com. 19js810300z.com has one IP number.
yiy.net, 155.org, 300.net, wyw.net, 369.net and at least 57 other hosts share name servers with this domain.

19js810300z.com is hosted on a server in Russian Federation.


This makes me feel it got in and is try to communicate and Symantec is flagging it. You can still post in the other forum. I mentioned that If it's not a bother when dealing with this type of backdoor Rootkit, i prefer to wipe the drive and reinstall. Then I can have my security confidence back.
How do I get help? Who is helping me?For the time will come when men will not put up with sound doctrine. Instead, to suit their own desires, they will gather around them a great number of teachers to say what their itching ears want to hear....Become a BleepingComputer fan: Facebook




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