Prevx Research Division
LSSAS.EXE
System Back DoorFree PC Cleanup from Webroot
Use Webroot SecureAnywhere to remove LSSAS.EXE.
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Associated Malware Groups
The unsafe files using this name are associated with the malware groups:
- System Back Door
- Cloaked Malware
- Malicious Software
- Worm
- Internet Chat Worm
File Behavior
LSSAS.EXE has been seen to perform the following behavior:
- Adds a Registry Key (RUN) to auto start Programs on system start up
- Writes to another Process's Virtual Memory (Process Hijacking)
- Executes a Process
- Executes Processes stored in Temporary Folders
- This Process Deletes Other Processes From Disk
- This process creates other processes on disk
- Can communicate with other computer systems using HTTP protocols
- Hooks the WININET.DLL function allowing it to read or copy Http and Https web page content and session information
- Registers a Dynamic Link Library File
- Downloads program file(s) and other content from the web
- Injects code into other processes
- Copies files
- Performs DNS look ups to resolve URL IP addresses
- Uses Instant Messaging to communicate without the user's knowledge
- Uses embeded Instant Message Channel Settings
- Automatically changes your firewall settings to allow itself or other programs to communicate over the internet
- Modifies firewall settings, without user permission so it is not blocked from accessing the Internet
- This Process is a file infector which modifies program files to include a copy of the infection
- Creates new folders in the file system
- Includes file creation code which could be used to test for interception by security products
- Found on infected systems and resists interrogation by security products
- Uses low level functions to hide itself from the user and from system/security processes
- The Process is packed and/or encrypted using a software packing process
LSSAS.EXE has been the subject of the following behavior:
- Created as a process on disk
- Executed as a Process
- Has code inserted into its Virtual Memory space by other programs
- Added as a Registry auto start to load Program on Boot up
- Executed from Temporary Folders
- Copied to multiple locations on the system
- Deleted as a process from disk
- Terminated as a Process
- Registered as a Dynamic Link Library File
- Changes to the file command map within the registry
Country Of Origin
The filename LSSAS.EXE was first seen on May 20 2007 in the following geographical regions of the Webroot community:
- Germany on May 20 2007
- Portugal on May 20 2007
- Philippines on Feb 5 2009
- France on Jul 3 2009
- Israel on Jan 27 2010
- Brazil on Apr 8 2010
- Italy on Apr 16 2010
- Canada on Apr 16 2010
- The United Kingdom on Jun 17 2011
- Iran, Islamic Republic of on Apr 12 2012
File Name Aliases
LSSAS.EXE can also use the following file names:
- RCBQF.EXE
- PSQRB.EXE
- BVOJRDVP.EXE
- EXPLORER.EXE
- APFKFP.EXE
- BVAH.EXE
- JMENI.EXE
- NPBDP.EXE
- SOTPNYP.EXE
- YIXLRIAV.EXE
- ATYTEYG.EXE
- BITIMQ.EXE
- CMAWP.EXE
- DMQKCZI.EXE
- DPDS.EXE
- EBUJIWQ.EXE
- FHYK.EXE
- FNHYIODV.EXE
- GDHJXEO.EXE
- GDZOEG.EXE
- GLUT.EXE
- GUCYARX.EXE
- ISJDS.EXE
- KALNMN.EXE
- KEPA.EXE
- KSIXU.EXE
- KWMVSUGY.EXE
- KYLNDHB.EXE
- LCIZOEKQ.EXE
- LCXE.EXE
- MAAIFA.EXE
- MZNYHXPJ.EXE
- NIBZMJLR.EXE
- NJIERCJX.EXE
- RBRP.EXE
- RCURHF.EXE
- RLSPJ.EXE
- SOQEDK.EXE
- TJFJ.EXE
- TQFXXMD.EXE
- TZINUWJ.EXE
- X8NOU1XIT.EXE
- FGN3QAL8C.EXE
- MYCK.EXE
- GSQ6L264.EXE
- ADVNLHUS.EXE
- SZ62MXAO.EXE
- EE5WFU3D.EXE
- KIQS2HIP.EXE
- DQ4HD6SYZ.EXE
- MYCK_001.JPG
- DGICT4YNB.EXE
- EJCYVVUXN.EXE
- MXZ1VDXI7.EXE
- R5PS2ZNX.EXE
- BKUHTJM4W.EXE
- VEU2CZB24.EXE
- GCOM2HY2.EXE
- R1O0RTB3.EXE
- J4FR5JF7.EXE
- LOQK1L7W.EXE
- YCPLE066.EXE
- C8KIYDUYW.EXE
- VZX57HWX.EXE
- JPH300Z3S.EXE
- PQ5OS18NW.EXE
- AHXTEF2G.EXE
- C1PR5PS1.EXE
- HEMY8NEL.EXE
- SJ1HQ0NZP.EXE
- X0QLQBTJV.EXE
- BCQADNL9.EXE
- HYI4TQIW.EXE
- FW71QEGU.EXE
- AA11KQYI.EXE
- JYZ6C9T4H.EXE
- S3682JUPE.EXE
- LPE9EZI8.EXE
- N65G9B6N.EXE
- ECKMWBCJ.EXE
- DRCT5N6D9.EXE
- WGI49MSK6.EXE
- AKRFF66P.EXE
- VWBUY7ET2.EXE
- TDYWKCQK.EXE
- U0TFLLKN.EXE
- LZJMW3IR.EXE
- O7DM5J5L.EXE
- SPOOLSVC.EXE
- SPOOISV.EXE
- LOGON.EXE
- VSRNGC.EXE
- CPMZYKG.EXE
- DATA.EXE
- VUHCUQUA.EXE
- ISASS.EXE
- WHCPAV.EXE
- EEIS.EXE
- BDNOECUA.EXE
- KFSNIRWE.EXE
- NLXFX.EXE
- WINAMP.EXE
- OEXE.EXE
- NFHGBNXY.EXE
- EJFSSN.EXE
- OHSFQX.EXE
- OIBZCLY.EXE
- CZNQN.EXE
- VACFXBVN.EXE
- RKJL.EXE
- RBDPQGV.EXE
- KFQW.EXE
- KLMZEIR.EXE
- IEPBJD.EXE
- POMN.EXE
- DASZNZC.EXE
- ALGS.EXE
- DPJRHX.EXE
- FIREWALL.EXE
- YIOQQDHQ.EXE
- OLQRG.EXE
- YQFNSGN.EXE
- FVDJ.EXE
- YPZFBW.EXE
- ARUX.EXE
- YSQX.EXE
- IFPY.EXE
- GVVBQDQ.EXE
- KUYKTQ.EXE
- NOLZWVIC.EXE
- JQVMPF.EXE
- WPMSM.EXE
- KIMNDPMX.EXE
- KKBBR.EXE
- TRUBLNKS.EXE
- VCSKTTD.EXE
- PCBY.EXE
- BTAINYA.EXE
- CMYPZV.EXE
- IOTLM.EXE
- QLSZEAOC.EXE
- TCSYQDMU.EXE
- WFSY.EXE
- TIRVIUA.EXE
- OUT[1].EXE
- ERASE_ME149750.EXE
- ERASE_ME154560.EXE
- ERASE_ME807883.EXE
- ERASE_ME169724.EXE
- ERASE_ME557255.EXE
- ERASE_ME513317.EXE
- ERASE_ME400807.EXE
- ERASE_ME432379.EXE
- ERASE_ME675284.EXE
- ERASE_ME150916.EXE
- ERASE_ME977892.EXE
- ERASE_ME040247.EXE
- ERASE_ME429651.EXE
- ERASE_ME665331.EXE
- ERASE_ME164394.EXE
- ERASE_ME964372.EXE
- ERASE_ME557735.EXE
- ERASE_ME086781.EXE
- GAMES.EXE
- HIDDENFOLDER.EXE
- VIDEOS.EXE
- ANTIVIRUSCOLLECTION.EXE
- INSTALLERS.EXE
- MY MUSIC.EXE
- MY PICTURES.EXE
- MY RECEIVED FILES.EXE
- NEIDE.EXE
- OCOTHKG.EXE
- IEXPLORE.EXE
- WBORIQH.EXE
- CSRS.EXE
- WINIOGON.EXE
- 84.EXE
- 95.EXE
- 44.EXE
- 49.EXE
- MP3.EXE
- TFTP1900
- !1B31
- RS3.EXE
- 19677536.DAT
Filesizes
The following file size has been seen:
- 147,456 bytes
- 44,032 bytes
- 286,720 bytes
- 90,624 bytes
- 1,657,344 bytes
- 94,208 bytes
- 69,632 bytes
- 438,272 bytes
- 151,552 bytes
File Type
The filename LSSAS.EXE refers to many versions of an executable program.
File Activity
One or more files with the name LSSAS.EXE creates, deletes, copies or moves the following files and folders:
- create folder C:\WINDOWS\system32\Uninstalled
- create folder C:\Program Files\\Folder Collection
- create folder C:\Program Files\Warcraft III
- Creates c:\autorun.in
- Creates d:\autorun.in
- Deletes c:\windows\system32\uninstalled\lssas.ex
- Deletes c:\documents and settings\user\start menu\programs\startup\lssas.ex
- Deletes c:\documents and settings\user\my documents\Videos.ex
- Deletes c:\documents and settings\user\my documents\mp3.ex
- Deletes c:\documents and settings\user\my documents\HiddenFolder.ex
- Deletes c:\documents and settings\user\desktop\Videos.ex
- Deletes c:\documents and settings\user\desktop\mp3.ex
- Deletes c:\documents and settings\user\desktop\Games.ex
- Deletes c:\windows\Installers.ex
- Deletes c:\windows\AntiVirusCollection.ex
- Deletes c:\windows\HiddenFolder.ex
- Deletes c:\windows\system32\Installers.ex
- Deletes c:\windows\system32\AntiVirusCollection.ex
- Deletes c:\windows\system32\HiddenFolder.ex
- Deletes c:\docume~1\user\locals~1\temp\Installers.ex
- Deletes c:\docume~1\user\locals~1\temp\AntiVirusCollection.ex
- Deletes c:\docume~1\user\locals~1\temp\HiddenFolder.ex
- Deletes c:\Videos.ex
- Deletes c:\mp3.ex
- Deletes c:\HiddenFolder.ex
- Deletes c:\autorun.in
- Deletes d:\Videos.ex
- Deletes d:\mp3.ex
- Deletes d:\HiddenFolder.ex
- Deletes d:\autorun.in
- Deletes c:\documents and settings\user\my documents\Games.ex
- Deletes c:\program files\warcraft iii\Videos.ex
- Deletes c:\program files\warcraft iii\mp3.ex
- Deletes c:\program files\warcraft iii\Games.ex
- Deletes c:\Games.ex
- Deletes d:\Games.ex
- Deletes c:\documents and settings\user\my documents\my music\My Music.ex
- Deletes c:\documents and settings\user\my documents\my pictures\My Pictures.ex
- Deletes c:\documents and settings\user\my documents\my received files\My Received Files.ex
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