US0105.EXE - Dangerous

What you should do about US0105.EXE:

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Your PC is infected. The file called US0105.EXE is considered unsafe and there may be other infections on your PC.


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What we know about US0105.EXE:

The filename US0105.EXE was first seen on Aug 9 2007 in SPAIN. It has also been seen in the following geographical regions of the Prevx community:

  • NETHERLANDS on Dec 4 2007
  • BELGIUM on Nov 23 2007
  • SAUDI ARABIA on Aug 9 2007
  • The UNITED STATES on Sep 5 2007
  • The UNITED KINGDOM on Apr 1 2008
  • ARGENTINA on May 8 2008
The filename US0105.EXE refers to many versions of an executable program.

The most common file size is 28,929 bytes. But the following file sizes have also been seen:

  • 21,504 bytes
  • 60,928 bytes
  • 68,096 bytes
  • 42,425 bytes
  • 61,440 bytes
  • 70,144 bytes
  • 28,491 bytes

The filename is associated with the malware group Trojan.Gorhax.Some files using the name US0105.EXE are also associated with the malware groups:
  • Trojan.Dropper
  • TROJAN.C
 These files have no vendor, product or version information specified in the file header.

US0105.EXE has been seen to perform the following behavior(s):

  • The Process is packed and/or encrypted using a software packing process
  • Writes to another Process's Virtual Memory (Process Hijacking)
  • Adds a Registry Key (RUN) to auto start Programs on system start up
  • This Process Creates Other Processes On Disk
  • Executes a Process
  • This Process Deletes Other Processes From Disk
  • Executes Processes stored in Temporary Folders
  • Terminates Processes
  • The Process is polymorphic and can change its structure
  • Registers a Windows APPINIT DLL To be loaded in all processes
  • Modifies Windows Initialization And System Settings Used On Start up
  • Disables Access to the Task Manager built into Windows
  • Disables Windows Automatic Updates including Security Updates and Patches
  • Disables Access to the Windows Registry Editior
  • Disables the Notification Baloon for the Windows Security Center
  • Modifies Windows Security Policies to restrict/expand User Privlidges on the machine
  • Can communicate with other computer systems using HTTP protocols
  • Enables an In Process Object/Server - Common with DLL Injections
  • Creation and Registration of a Browser Helper Object in Internet Explorer
  • Disables the built in Windows File Protection System
  • Includes file creation code which could be used to test for interception by security products

US0105.EXE has been the subject of the following behavior(s):

  • Created as a process on disk
  • Executed by Internet Explorer
  • Added as a Registry auto start to load Program on Boot up
  • Executed as a Process
  • Deleted as a process from disk
  • Has code inserted into its Virtual Memory space by other programs
  • Terminated as a Process
  • Registered as a Dynamic Link Library File
  • Added as a Link in the Start Menu
  • Executed from Temporary Folders

US0105.EXE can also use the following file names:

  • TRAYICONS.EXE
  • 32130026.DAT
  • WN852.EXE
  • SYSVKVF.EXE
  • SYSGRNM.EXE
  • 52330267.EXE
  • SYSHWFL.EXE
  • 15014213.EXE
  • CHECKMEM.EXE
  • AVP.EXE
  • %TEMP%MBROIT.EXE
  • 1195939782[1].EXE
  • 8UNYBENK.EXE
  • 1195939784[1].EXE
  • PROTECT.EXE
  • 23913987.SVD
  • 33422408.DAT
  • 1189085818[1].EXE
  • 16331918.DAT
  • 35269169.DAT
  • 62639971.SVD
  • SYSPRTC.EXE
  • DPTRMWLAXS-813.PMS.EXE
  • 07711392.EXE
  • 57437727.SVD
  • 61422117.DAT
  • SYSNHTV.EXE
  • SYSSTPK.EXE
  • SYSSNMM.EXE
  • SYSICSH.EXE
  • 98187927.DAT
  • OVJW.EXE
  • EYSJ.EXE
  • DPTRMRPDUM-773.PMS.EXE
  • 12606471.SVD