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Trojan.Younmac Analysis Report
Threat Submitted On: 3/9/2008 9:24:09 AM
Threat Analysed On: 3/9/2008 2:24:09 PM
Threat Updated On: 1/27/2011 2:57:19 PM
Type : Trojan
Symptoms of Younmac
  • Performs illicit activities under the disguise of a useful program.
  • Download malicious code and programs such as keyloggers.
  • It is capable of fetching user’s personal and confidential information.
Information
Alias : Trojan.Win32.Younmac
Md5 Hash : [766c9d6cdf3e1b75d874668791706065]
File Size : (56834 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: packet32.dll
Path : %workingdir%

Md5Hash :( bytes)
File: win32ldr.dll
Path : %workingdir%

Md5Hash :( bytes)
File: zpacket.vxd
Path : %workingdir%

Md5Hash :( bytes)
File: pnpcfg.exe
Path : %windir%

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Collapse Md5Hash :Md5Hash :
2f79f5af29ea57721e43adfbab0e0f6c ( 56832 bytes)
766c9d6cdf3e1b75d874668791706065 ( 56834 bytes)
File: [randomname].exe
Path : %workingdir%

Skip Navigation Links.
Collapse Md5Hash :Md5Hash :
2f79f5af29ea57721e43adfbab0e0f6c ( 56832 bytes)
766c9d6cdf3e1b75d874668791706065 ( 56834 bytes)
The following Registry Values are added to the provided Registry Keys :-
Note:
Delete the added Values from the Key to remove Infection
|__ Value Added :
pnpcfg.exe = "%windir%\pnpcfg.exe"
Creates the Following MUTEX(s) on user's System:-
yong_mac_sniff_mutex
Copies the Following Files to Given Location :-

Copies :%workingdir%\[random name].exe

To : %windir%\pnpcfg.exe

NOTE:

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

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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