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Trojan:Win32/Miuref.F

First posted on 14 July 2014.
Source: Microsoft

Aliases :

There are no other names known for Trojan:Win32/Miuref.F.

Explanation :

Threat behavior

Installation

Trojan:Win32/Miuref.F creates the following files on your PC:

• %windir%\assembly\nativeimages_v2.0.50727_32\temp\zap10.tmp\system.data.services.dll
• %windir%\assembly\nativeimages_v2.0.50727_32\temp\zapf.tmp\system.data.entity.design.dll

Payload

Contacts remote hosts

Trojan:Win32/Miuref.F may contact the following remote hosts using port 443:

• 1.jsservices.org
• 2.jsservices.org
• 5.jsservices.org

Commonly, malware does this to:

• Confirm Internet connectivity
• Report a new infection to its author
• Receive configuration or other data
• Download and run files, including updates or other malware
• Receive instructions from a remote hacker
• Upload data taken from your PC

This malware description was produced and published using automated analysis of file SHA1 7e75be82a17bfe85ce9a65feb9fb9da5158e62ad.Symptoms

System changes

The following could indicate that you have this threat on your PC:

• You have these files:
  
  %windir%\assembly\nativeimages_v2.0.50727_32\temp\zap10.tmp\system.data.services.dll
  %windir%\assembly\nativeimages_v2.0.50727_32\temp\zapf.tmp\system.data.entity.design.dll

Last update 14 July 2014

 

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