File Investigation Report

LWPWER.EXE

Malware Downloader

PC Cleanup in 3 Easy Steps

Use Prevx 3.0 to remove LWPWER.EXE, along with any other viruses, spyware, adware, trojans, rootkits, worms, information stealers, keyloggers, bots, and other form of malicious threat that may reside on your PC.

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PC Magazine, Editors' Choice, May 2009

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Associated Malware Groups

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

Malware Downloader
Spyware
Malware Dropper
Malicious Software

File Behavior

LWPWER.EXE has been seen to perform the following behavior:

Executes a Process
Creates system tray popups, messages, errors and security warnings
This process creates other processes on disk
The Process is packed and/or encrypted using a software packing process
Adds products to the system registry
Adds a Registry Key (RUN) to auto start Programs on system start up
This Process Deletes Other Processes From Disk
Looks at the contents of the autoexec.bat file
Reads email address and phone book details
Can communicate with other computer systems using HTTP protocols
Writes to another Process's Virtual Memory (Process Hijacking)
This Process is a file infector which modifies program files to include a copy of the infection
Visits web sites on your PC without you knowing
Executes Processes stored in Temporary Folders

LWPWER.EXE has been the subject of the following behavior:

Created as a process on disk
Has code inserted into its Virtual Memory space by other programs
Deleted as a process from disk
Executed as a Process
This program is often downloaded from the web
Created by processes which appear to be checking for interception by security products
Executed from Temporary Folders
Added as a Registry auto start to load Program on Boot up
Terminated as a Process
Registered as a Dynamic Link Library File

Country Of Origin

The filename LWPWER.EXE was first seen on Jul 10 2008 in the following geographical regions of the Prevx community:

The EUROPEAN UNION on Jul 10 2008
GERMANY on Aug 7 2008
SPAIN on Aug 7 2008
ITALY on Aug 26 2008
The UNITED KINGDOM on Sep 5 2008
The UNITED STATES on Sep 24 2008

File Name Aliases

LWPWER.EXE can also use the following file names:

EMPA.EXE
UNINSTALLER[1].EXE
UNINSTALLER[2].EXE
01C90FCC42120F00_UNINSTALLER[1]_EXE.PE
01C90FCC42139630_LWPWER_EXE.PE
D100526[n].EXE
90622001.EXE
01287162.EXE
SFSRV.EXE
SFSRV.EXE.XXX
UNINSTALLER[3].EXE
01C91A4A3F73BA00_UNINSTALLER[1]_EXE.PE
01C91A4A3FADCB20_LWPWER_EXE.PE
01C91A4A4DD1CE50_UNINSTALLER[1]_EXE.PE
01C91A4A4DD663E0_LWPWER_EXE.PE
01C91A4B1E80E080_UNINSTALLER[2]_EXE.PE
01C91A4B1E8267B0_EMPA_EXE.PE
01C91A4BDD078A50_UNINSTALLER[1]_EXE.PE
01C91A4BDD2AAFA0_LWPWER_EXE.PE
01C91AFE85CDF6F0_UNINSTALLER[1]_EXE.PE
01C91AFE85CF7E20_LWPWER_EXE.PE
01C91AFEFEB7F000_UNINSTALLER[1]_EXE.PE
01C91AFEFF1B4330_LWPWER_EXE.PE
01C91AFF149CEBC0_UNINSTALLER[1]_EXE.PE
DVECQSG.TMP
YRCMTDY.TMP
20686664.EXE
13324964.EXE
4683[n].EXE
LWPOWER.EXE
034CB529-4759-4EFA-825D-6369E7E8D414_CATCHME.TMP
01C921818DFEF240_LWPWER_EXE.PE
01C9218228B218B0_LWPWER_EXE.PE
UNINSTALLER[n].EXE
DD71.EXE
KOXMKPV.TMP

Filesizes

The following file size has been seen:

1,185,556 bytes
70,144 bytes
1,201,605 bytes
1,186,232 bytes
851,968 bytes
950,586 bytes
1,189,857 bytes
55,808 bytes

File Type

The filename LWPWER.EXE is used by multiple object types including objects,executable programs,self extracting compressed files.

File Activity

One or more files with the name LWPWER.EXE creates, deletes, copies or moves the following files and folders:

create folder C:\Program Files\PCHealthCenter
Deletes c:\windows\system32\YUR18.tmp
Copies filec:\program files\pchealthcenter\1.exe to c:\x
Copies filec:\x to c:\windows\system32\YUR18.exe
Deletes c:\windows\system32\YUR1C.tmp
Copies filec:\program files\pchealthcenter\2.exe to c:\x
Copies filec:\x to c:\windows\system32\YUR1C.exe
Deletes c:\windows\system32\YUR20.tmp
Copies filec:\program files\pchealthcenter\3.exe to c:\x
Copies filec:\x to c:\windows\system32\YUR20.exe
Deletes c:\windows\system32\YUR24.tmp
Copies filec:\program files\pchealthcenter\4.exe to c:\x
Copies filec:\x to c:\windows\system32\YUR24.exe
Copies filec:\program files\pchealthcenter\1.ico to c:\windows\system32\1.ic
Creates c:\documents and settings\user\desktop\QUALITY PORN.ur
Copies filec:\program files\pchealthcenter\2.ico to c:\windows\system32\2.ic
Creates c:\documents and settings\user\desktop\BEST ZOO PORN.ur
create folder C:\Program Files\MSA
Creates c:\documents and settings\user\desktop\MS Antivirus.lnk
Creates c:\documents and settings\user\local settings\temporary internet files\content.ie5\opljk1s3\135[1]
Copies filec:\program files\msa\MSA.cpl to c:\windows\system32\MSa.cpl
Deletes c:\program files\msa\MSA.ooo
Creates c:\documents and settings\user\local settings\temporary internet files\content.ie5\iy2f8yu8\lb[1]
Creates c:\documents and settings\user\local settings\temporary internet files\content.ie5\77xkpe1o\l[1]
Creates c:\documents and settings\user\local settings\temporary internet files\content.ie5\8daj1s8j\s[1]
Creates c:\documents and settings\user\local settings\temporary internet files\content.ie5\opljk1s3\y2[1]
Creates c:\documents and settings\user\local settings\temporary internet files\content.ie5\iy2f8yu8\y1[1]
Creates c:\documents and settings\user\local settings\temporary internet files\content.ie5\77xkpe1o\v1[1]
Creates c:\documents and settings\user\local settings\temporary internet files\content.ie5\8daj1s8j\y3[1]
Creates c:\documents and settings\user\local settings\temporary internet files\content.ie5\opljk1s3\r[1]
Creates c:\documents and settings\user\local settings\temporary internet files\content.ie5\iy2f8yu8\tb1[1]
Creates c:\documents and settings\user\local settings\temporary internet files\content.ie5\77xkpe1o\tb2[1]
Creates c:\documents and settings\user\local settings\temporary internet files\content.ie5\8daj1s8j\sp[1]
Creates c:\documents and settings\user\local settings\temporary internet files\content.ie5\opljk1s3\pb2[1]
Creates c:\documents and settings\user\local settings\temporary internet files\content.ie5\iy2f8yu8\pb1[1]
Creates c:\documents and settings\user\local settings\temporary internet files\content.ie5\77xkpe1o\pb4[1]
Creates c:\documents and settings\user\local settings\temporary internet files\content.ie5\8daj1s8j\pb3[1]
Creates c:\documents and settings\user\local settings\temporary internet files\content.ie5\opljk1s3\pr[1]
Creates c:\documents and settings\user\local settings\temporary internet files\content.ie5\iy2f8yu8\l1[1]
Creates c:\documents and settings\user\local settings\temporary internet files\content.ie5\77xkpe1o\l11[1]
Creates c:\documents and settings\user\local settings\temporary internet files\content.ie5\8daj1s8j\l2[1]
Creates c:\documents and settings\user\local settings\temporary internet files\content.ie5\opljk1s3\l3[1]
Creates c:\documents and settings\user\local settings\temporary internet files\content.ie5\iy2f8yu8\b1[1]
Creates c:\documents and settings\user\local settings\temporary internet files\content.ie5\77xkpe1o\b2[1]
Creates c:\documents and settings\user\local settings\temporary internet files\content.ie5\8daj1s8j\b3[1]
Creates c:\documents and settings\user\local settings\temporary internet files\content.ie5\opljk1s3\b4[1]
Creates c:\documents and settings\user\local settings\temporary internet files\content.ie5\iy2f8yu8\a[1]
Creates c:\documents and settings\user\local settings\temporary internet files\content.ie5\77xkpe1o\133[1]
Creates c:\documents and settings\user\local settings\temporary internet files\content.ie5\8daj1s8j\w1[1]
Creates c:\documents and settings\user\local settings\temporary internet files\content.ie5\opljk1s3\w2[1]

Website Activity

One or more files with the name LWPWER.EXE interacts with the following web sites and pages. Web addresses have been deliberately modified to prevent unintentional use.

TCP:127.0.0.1:1100 Port:15
Port 80 IP:91.208.0.237

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