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Sality Trojan Win XP Pro


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#1 JamesAlmasy

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Posted 03 January 2014 - 01:06 AM

I've been fighting this virus for about a week or so now. I just added a new 200GB Hard Drive to my pc. Unfortunately, I did not know that a nasty little trojan called Sality was lurking on it's remains. I've done what I can to combat it.

 

So far, it seems like most traces have been destroyed. However there are a few problems left in it's wake.

 

I cannot connect to the internet anymore with my desktop, however skype and certain parts of steam still have access to the internet. Both of my browsers, IE and Firefox will not show, connect, or do anything internet wise. My Antiviruses are also unable to update. I have control of Task Manager and Registry Editing thanks to Kaspersky's Salitykiller and Sality_regkeys.

 

I had tried combofix before using these, I'm running a few scans with some of the stuff i have on my pc. Any insight into why most of the internet stuff isn't working would be a massive help.

 

(Also, I do not have a CD to reboot with. So that option is entirely off the table.)


Edited by hamluis, 03 January 2014 - 11:15 AM.
Moved from XP to Am I Infected - Hamluis.


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#2 JamesAlmasy

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Posted 03 January 2014 - 02:16 AM

Ah. Nevermind. My pc crashed. NTLDR or whatever is missing now.



#3 quietman7

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Posted 03 January 2014 - 10:39 PM

FYI: Win32/Sality is a dangerous polymorphic file infector which infects .exe, .scr files, creates a peer-to-peer (P2P) botnet that compromises your computer, downloads more malicious files to your computer, steals sensitive system information/passwords and sends it back to the attacker.

-- Note: As with most malware infections, the threat name may be different depending on the anti-virus or anti-malware program which detected it. Each security vendor uses their own naming conventions to identify various types of malware.With this particular infection, the safest solution and only sure way to remove it effectively is to reformat and reinstall the OS.

Why?

As an entry-point obscuring (EPO) polymorphic file infector, the virus gains control of the host body by overwriting the file with complex and encrypted code instructions. The goal of the complex code is to make analysis more difficult for researchers to see the real purpose and functionality implemented in the code...Infected files will have their original, initial instructions overwritten by complex code instructions with the encrypted viral code body located in the last section of the file.

Symantec's Assessment of Win/32Sality


As with many other malware, Sality disables antivirus software and prevents access to certain antivirus and security websites. Sality can also prevent booting into Safe Mode and may delete security-related files found on infected systems. To spread via the autorun component, Sality generally drops a .cmd, .pif, and .exe to the root of discoverable drives, along with an autorun.inf file which contains instructions to load the dropped file(s) when the drive is accessed.

About Sality Virus

Sality is commonly spread via a flash drive (usb, pen, thumb, jump) where it can infect executable files on local, removable and remote shared drives. The infection is often contracted by visiting remote, crack and keygen sites. These type of sites are infested with a smörgåsbord of malware and a major source of system infection.

Since Win32.Sality is not effectively disinfectable, your best option is to perform a full reformat as there is no guarantee this infection can be completely removed. In most instances it may have caused so much damage to your system files that it cannot be completely cleaned or repaired. In many cases the infected files cannot be deleted and anti-malware scanners cannot disinfect them properly.

Many experts in the security community believe that once infected with this type of malware, the best course of action is to wipe the drive clean, reformat and reinstall the OS. Please read:

Whenever a system has been compromised by a backdoor payload, it is impossible to know if or how much the backdoor has been used to affect your system...There are only a few ways to return a compromised system to a confident security configuration. These include:
Reimaging the system
Restoring the entire system using a full system backup from before the backdoor infection
Reformatting and reinstalling the system

Backdoors and What They Mean to You

This is what Jesper M. Johansson, Security Program Manager at Microsoft TechNet has to say: Help: I Got Hacked. Now What Do I Do?.

The only way to clean a compromised system is to flatten and rebuild. Thats right. If you have a system that has been completely compromised, the only thing you can do is to flatten the system (reformat the system disk) and rebuild it from scratch (reinstall Windows and your applications).


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#4 JamesAlmasy

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Posted 04 January 2014 - 02:48 AM

Is there a way to put a windows xp pro iso on a flash drive to reinstall, or should I start a new thread on that?



#5 quietman7

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Posted 04 January 2014 - 08:16 AM

A simple Google search will yield the information you need. However, if you require additional assistance, please start a new topic in the appropriate Operating Systems forum.
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