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PSW-Stealer.AcidShiver Analysis Report
Threat Submitted On: 3/9/2008 12:21:04 AM
Threat Analysed On: 3/9/2008 5:21:04 AM
Threat Updated On: 1/28/2011 2:27:06 PM
Type : PSW-Stealer
Symptoms of AcidShiver
  • Runs in stealth mode and records passwords as and when entered on a system
  • May also imitate the login prompt, asking the user to provide their password
Information
Alias : Trojan-PSW.Win32.AcidShiver.d
Md5 Hash : [9e74c37f5240abbecb95b93543854133]
File Size : (503112 bytes)

Technical Details

Here are the Technical findings of our analysis team after analyzing this malware in detail :-

Creates the following infected Files on user's System
Note:
Delete the following Files to remove Infection
File:  .exe
Path : %windir%\system

Md5Hash :9e74c37f5240abbecb95b93543854133 ( 503112 bytes)
File: [randomname].exe
Path : %workingdir%

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Collapse Md5Hash :Md5Hash :
05afea6fc7d6a83433b5b56dda3de23a ( 186368 bytes)
52d9c8a34d8717f009a285bc049a10cb ( 186370 bytes)
76f2cbb516db9411e306501a7568adcd ( 186368 bytes)
9e74c37f5240abbecb95b93543854133 ( 503112 bytes)
b4dc9b2537d0924b7287abfdecdf0ad6 ( 73730 bytes)
bd189262c0a5db345356727a202087b7 ( 159744 bytes)
Also creates the following files on user's System which are also created by Genuine Software :-
Note:
These file(s) can be kept as they are also created by genuine Software.
File : mswinsck.ocx
Path : %windir%\system

Md5Hash :0fa58d03637de9e62bfd32a5ba2bb458 ( 106768 bytes)
File : regsvr32.exe
Path : %windir%\system

Md5Hash :cf18d506e11fe2fd86c518db72102709 ( 20480 bytes)
The following Registry Values are added to the provided Registry Keys :-
Note:
Delete the added Values from the Key to remove Infection
Creates the following child process(s) on execution:

%windir%\system\regsvr32 /s%windir%\system\mswinsck.ocx

%windir%\system\ .exe

NOTE:

1. %windir% Refers to the windows root folder. By default it is 'C:\Windows'
2. %workingdir% Refers to the current directory in which user is working.

Important: We strongly recommend that you backup the Registry before making any changes to it. Incorrect changes to the Registry can result in permanent data loss or corrupted Files. Modify the malicious\suspicious Subkeys only.

Click Here for more spywarelib.com recommended PC Security and Optimization Tools

To modify registry entries in Windows Operating System:
Follow Steps:
1. Click Start > Run
2. Type “regedit” : to open registry editor
3. Navigate to required registry Key from the Left Tree control and modify accordingly.


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