IEHELPER.DLL

Cloaked Malware

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Associated Malware Groups

The unsafe files using this name are associated with the malware groups:

Cloaked Malware
Worm

File Behavior

IEHELPER.DLL has been seen to perform the following behavior:

Uses rootkit techniques to conceal its presence, interrogation or removal
Found on infected systems and resists interrogation by security products
Registers a Dynamic Link Libray (DLL) File
Enables an In Process Object/Server - Common with DLL Injections
Creation and Registers a Browser Helper Object in Internet Explorer
Uses low level functions to hide itself from the user and from system/security processes

IEHELPER.DLL has been the subject of the following behavior:

Registered as a Dynamic Link Library File
Enabled as an In Process Object/Server - Common with DLL Injections
Registered as a Dynamic Link Libray (DLL) File
Created as a process on disk
Executed as a Process
Created and Registered as a Browser Helper Object in Internet Explorer
Deleted as a process from disk
Added as a Registry Key (RUNONCE) to auto start Programs on system start up

Country Of Origin

The filename IEHELPER.DLL was first seen on May 14 2007 in the following geographical regions of the Webroot community:

Europe on May 14 2007
on May 14 2007
Poland on Jun 7 2007
Czech Republic on Jun 7 2007
The United States on Feb 25 2009

File Name Aliases

IEHELPER.DLL can also use the following file names:

BACKUP-20090420-172037-979.DLL
BACKUP-20090421-093839-205.DLL
BACKUP-20090425-002100-147.DLL
BACKUP-20090302-161722-776.DLL
BACKUP-20090305-201008-815.DLL
DIEBITCH.DLL
BACKUP-20090308-135148-594.DLL
BACKUP-20090312-152827-864.DLL
BACKUP-20090313-225853-248.DLL
BACKUP-20090318-232957-126.DLL
IEHELPER.DLL.DEL
BACKUP-20090313-172151-960.DLL
BACKUP-20090303-195552-667.DLL
IEHELPERNOGOOD.DLL
XXXIEHELPER.DLL
BACKUP-20090326-112909-527.DLL
BACKUP-20090327-144018-589.DLL
BACKUP-20090330-235153-689.DLL
NEW_IEHELPER.DLL
IEHELPER.NEW
DC6.DLL
DF2.DLL
01C998F1F5619C48_IEHELPER_DLL.PE
69331991.DAT

Filesizes

The following file size has been seen:

12,032 bytes
106,496 bytes
10,752 bytes
9,728 bytes
255,536 bytes
83,456 bytes

File Type

The filename IEHELPER.DLL refers to many versions of a dynamic link library.

Help the Webroot Community to fight cyber crime

We are always looking for ways to improve the quality and speed of research to help us protect you from malicious software and cyber crime.

The filename referred to in this report is often associated with PC infections. If you have a program of this name on your PC and would like to help our research please tell us what you know in the form below:

I have this file on my PC and believe it is an infection
I have this file on my PC and think it has made my PC slower
My firewall asked if I wanted to let this file have access to the Internet
My PC will not work since I noticed this file on it
My antivirus detected this file but won't remove it
I know what this file is and believe it is a Safe program
I am the author of this file and would like to discuss how to have it reclassified as safe

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