YBXUERBC[n].HTM (Derivative X1027774443), Prevx

Associated Malware Groups

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

Cloaked Malware
Malicious Software
Malware Downloader

File Behavior

YBXUERBC[n].HTM has been seen to perform the following behavior:

Writes to another Process's Virtual Memory (Process Hijacking)
Adds products to the system registry
This process creates other processes on disk
The process hooks code into all running processes which could allow it to take control of the system or record keyboard input, mouse activity and screen contents
This Process Deletes Other Processes From Disk
Executes a Process
Can communicate with other computer systems using HTTP protocols
Removes Scheduled Tasks from the Windows task queue
Registers a Dynamic Link Library File
Copies files
Creates or uses a background service to access the Internet using HTTP protocols
Disables safe mode on your PC
Injects code into other processes
Performs DNS look ups to resolve URL IP addresses
The Process is packed and/or encrypted using a software packing process
Downloads program file(s) and other content from the web
Creates new folders in the file system
Enables an In Process Object/Server - Common with DLL Injections
Visits web sites on your PC without you knowing
Adds a Registry Key (RUN) to auto start Programs on system start up

YBXUERBC[n].HTM has been the subject of the following behavior:

Executed as a Process
Has code inserted into its Virtual Memory space by other programs
Created as a process on disk
Copied to multiple locations on the system
Added as a Registry auto start to load Program on Boot up
Executed by Internet Explorer
Executed from Temporary Folders
Deleted as a process from disk
Terminated as a Process
Created by processes which appear to be checking for interception by security products

Country Of Origin

The filename YBXUERBC[n].HTM was first seen on May 31 2007 in the following geographical regions of the Webroot community:

Italy on May 31 2007
on May 31 2007
Sweden on Sep 25 2007
on Sep 25 2007
The United States on Jan 22 2008
Spain on Aug 22 2009
Europe on Aug 22 2009
The United Kingdom on Dec 19 2009
Egypt on Jan 1 2010
Turkey on May 23 2012

File Name Aliases

YBXUERBC[n].HTM can also use the following file names:

VICM.EXE
ETWPZMWGCZ[n].HTM
MFCYIWFP[n].HTM
DCSLBHU[n].HTM
PZFCC[n].HTM
VBYIR[n].HTM
TPRBOYMVFG[n].HTM
SPVOGOJR[n].HTM
ODNKHWGTD[n].HTM
MBUVF[n].HTM
DGVBPYIWPM[n].HTM
RAMFPCZMSG[n].HTM
EHNKTUY[n].HTM
MIN.EXE
MSA.EXE
MMPLAYER.EXE
WIN.EXE
MSB.EXE
D.EXE
IT.EXE
GH.EXE

Filesizes

The following file size has been seen:

193,024 bytes
32,768 bytes
705 bytes
38,672 bytes
218,636 bytes
99,328 bytes
214,528 bytes

File Type

The filename YBXUERBC[n].HTM is used by multiple object types including executable programs,objects.

File Activity

One or more files with the name YBXUERBC[n].HTM creates, deletes, copies or moves the following files and folders:

Deletes c:\docume~1\user\locals~1\temp\nst7.tmp
Deletes c:\docume~1\user\locals~1\temp\nsj9.tmp
Creates c:\docume~1\user\locals~1\temp\nsj9.tmp\NSISFile.dll
Creates c:\program files\common files\Yazzle1396OinAdmin.exe
Creates c:\program files\common files\Yazzle1396OinUninstaller.exe
Deletes c:\docume~1\user\locals~1\temp\nsj9.tmp\NSISFile.dll
Creates c:\docume~1\user\locals~1\temp\mshtml2.exe
Deletes c:\docume~1\user\locals~1\temp\mshtml2.exe
Creates c:\docume~1\user\locals~1\temp\mshtml3.exe
Deletes c:\docume~1\user\locals~1\temp\mshtml3.exe
Opens/modifes c:\autoexec.bat
create folder C:\WINDOWS\system32\?ecurity
create folder C:\WINDOWS\system32\ECURIT~1\?ecurity
create folder C:\WINDOWS\system32\ECURIT~1\ECURIT~1
Creates c:\windows\system32\ecurit~1\chkntfs.exe
Creates c:\windows\system32\ecurit~1\ecurit~1\ctxad-580.000
Creates c:\documents and settings\user\application data\Microsof
Creates c:\documents and settings\user\application data\microsoft\Crypt
Creates c:\documents and settings\user\application data\microsoft\crypto\RS
Creates c:\documents and settings\user\application data\microsoft\crypto\rsa\S-1-5-21-1858025970-2322712386-1997616605-100
Creates c:\docume~1\user\locals~1\temp\ctxad.exe
Deletes c:\windows\system32\ecurit~1\ecurit~1\ctxad-580.000
Deletes c:\docume~1\user\locals~1\temp\ctxad.exe
create folder C:\Program Files\Outerinf
create folder C:\Program Files\Outerinfo\F
create folder C:\Program Files\Outerinfo\FF\component
Deletes c:\docume~1\user\locals~1\temp\nse23.tmp
Creates c:\docume~1\user\locals~1\temp\NDrv.dll
Creates c:\documents and settings\user\application data\Microsoft
Creates c:\documents and settings\user\application data\microsoft\Crypto
Creates c:\documents and settings\user\application data\microsoft\crypto\RSA
Creates c:\documents and settings\user\application data\microsoft\crypto\rsa\S-1-5-21-1858025970-2322712386-1997616605-1003
Copies filec:\docume~1\user\locals~1\temp\NDrv.dll to c:\windows\system32\lmwfpyr.dll
Deletes c:\docume~1\user\locals~1\temp\NDrv.dll
Creates c:\docume~1\user\locals~1\temp\NDrv.exe
Deletes c:\docume~1\user\locals~1\temp\NDrv.exe
Creates c:\docume~1\user\locals~1\temp\outerinfo.ico
Creates c:\program files\outerinfo\ff\install.rdf
Creates c:\program files\outerinfo\ff\chrome.man
Creates c:\program files\outerinfo\ff\components\FF.dll
Creates c:\program files\outerinfo\ff\components\OuterinfoAds.xpt
create folder C:\Program Files\?racle
Copies filec:\docume~1\user\locals~1\temp\NDrv.exe to c:\program files\?racle\??ool32.exe
Deletes c:\docume~1\user\locals~1\temp\eiet\index.da
Creates c:\docume~1\user\locals~1\temp\eiet\index.da
Copies filec:\docume~1\user\locals~1\temp\NDR37.tmp to c:\docume~1\user\locals~1\temp\eiet\T3B.tmp
Deletes c:\docume~1\user\locals~1\temp\tmp42.tmp
Creates c:\docume~1\user\locals~1\temp\tmp42.tmp
Deletes c:\documents and settings\user\application data\microsoft\crypto\rsa\s-1-5-21-1858025970-2322712386-1997616605-1003\6e549e6605dc34d14ae6f5ce06712580_00c1ea3a-eca6-4e0c-81e8-ae9c3e708f9e
Copies filec:\docume~1\user\locals~1\temp\NDR45.tmp to c:\docume~1\user\locals~1\temp\eiet\T49.tmp

Website Activity

One or more files with the name YBXUERBC[n].HTM interacts with the following web sites and pages. Web addresses have been deliberately modified to prevent unintentional use.

Remote server connection to fp .outerinfo .ne
Port 80 IP:63.251.135.24
TCP:127.0.0.1:1099 Port:16
Port 80 IP:63.251.135.26
Remote server connection to cu .outerinfo .ne
TCP:127.0.0.1:1102 Port:20
Port 80 IP:63.251.135.16
Port 80 IP:63.251.135.17
TCP:127.0.0.1:1116 Port:20
Port 80 IP:63.251.135.15
Port 80 IP:66.11.119.71

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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YBXUERBC[n].HTM

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