Prevx Research Division
STL.EXE
Cloaked MalwareFree PC Cleanup from Webroot
Use Webroot SecureAnywhere to remove STL.EXE.
"Just when you thought it couldn't get any better or faster. The Webroot scanning engine is 'high octane' with a hidden nitrous oxide system. Bravo!!!" W. Lodzinski, SecureAnywhere User
Associated Malware Groups
The unsafe files using this name are associated with the malware groups:
- Cloaked Malware
- Malicious Software
File Behavior
STL.EXE has been seen to perform the following behavior:
- Found on infected systems and resists interrogation by security products
- Writes to another Process's Virtual Memory (Process Hijacking)
- Adds products to the system registry
- Adds a Registry Key (RUN) to auto start Programs on system start up
- Executes a Process
- Can communicate with other computer systems using HTTP protocols
- Executes Processes stored in Temporary Folders
- This process creates other processes on disk
- Injects code into other processes
- This Process Deletes Other Processes From Disk
- Removes Scheduled Tasks from the Windows task queue
- Copies files
- Creates or uses a background service to access the Internet using HTTP protocols
- The Process is packed and/or encrypted using a software packing process
STL.EXE has been the subject of the following behavior:
- Added as a Registry auto start to load Program on Boot up
- Executed from Temporary Folders
- Created as a process on disk
- Has code inserted into its Virtual Memory space by other programs
- Terminated as a Process
- Executed as a Process
- Copied to multiple locations on the system
Country Of Origin
The filename STL.EXE was first seen on Oct 16 2007 in the following geographical regions of the Webroot community:
- South Africa on Oct 16 2007
- The United Kingdom on Mar 16 2010
- Guadeloupe on Mar 19 2010
- Spain on Mar 20 2010
- Turkey on Feb 1 2012
File Name Aliases
STL.EXE can also use the following file names:
- BRR.EXE
- FRM.EXE
- HOR.EXE
- HOX.EXE
- PGR.EXE
- UQH.EXE
- BZX.EXE
- HLL.EXE
- GGR.EXE
- GGU.EXE
- HWX.EXE
- VKH.EXE
- VCF.EXE
- HBX.EXE
- VCD.EXE
- QRY.EXE
- QJZ.EXE
- OOA.EXE
- OOD.EXE
- OOG.EXE
- OOJ.EXE
- OOS.EXE
- OOV.EXE
- JQD.EXE
- JQM.EXE
- JQH.EXE
- JQJ.EXE
- KCK.EXE
- BMX.EXE
- HRL.EXE
- IFX.EXE
- DPD.EXE
- UDX.EXE
- OTR.EXE
- JXK.EXE
- JXH.EXE
- XWR.EXE
- PMH.EXE
- CDX.EXE
- CXH.EXE
- OFL.EXE
- MHH.EXE
- JLD.EXE
- VPL.EXE
- JLF.EXE
- GSH.EXE
- TIA.EXE
- LLD.EXE
- OHL.EXE
- OHN.EXE
- OHP.EXE
- DDX.EXE
- ELX.EXE
- YTL.EXE
- LLP.EXE
- ODH.EXE
- JDX.EXE
- UHR.EXE
- UHT.EXE
- JGD.EXE
- BRJ.EXE
- QWN.EXE
- YSJ.EXE
- YSG.EXE
- PBK.EXE
- CXN.EXE
- IQU.EXE
- IQX.EXE
- DLD.EXE
- NZX.EXE
- OPL.EXE
- OPO.EXE
- ALX.EXE
- RHK.EXE
- RHL.EXE
- RMR.EXE
- MQD.EXE
- RHR.EXE
- WGB.EXE
- RJL.EXE
- ZML .EXE
- RFR.EXE
- TKL.EXE
- MQG.EXE
- MQJ.EXE
- MQM.EXE
- MQP.EXE
- MQS.EXE
- WHL.EXE
- RHI.EXE
- DHH.EXE
- DHK.EXE
- JFH.EXE
- IWD.EXE
- ALR.EXE
- RVL.EXE
- DLL.EXE
- GYI.EXE
- IBQ.EXE
- GXX.EXE
- IRH.EXE
- JLL.EXE
- RTR.EXE
- RTS.EXE
- VRFPOIQJKI0 (1).EXE
- CNL.EXE
- KPL.EXE
- QBD.EXE
- YFS.EXE
- YFU.EXE
- GNH.EXE
- LFL.EXE
- LFO.EXE
- YJH.EXE
- ZVH.EXE
- FHR.EXE
- FQY.EXE
- LKH.EXE
- QSC.EXE
- QSE.EXE
- MWJ.EXE
- MWM.EXE
- MGX.EXE
- SLN.EXE
- BPL.EXE
- BPN.EXE
- BPH.EXE
- QRI.EXE
- BUD.EXE
- EHL.EXE
- AQH.EXE
- ETR.EXE
- PBJ.EXE
- GLX.EXE
- HLX.EXE
- OCH.EXE
- TSX.EXE
- BHH.EXE
- MRD.EXE
- CVH.EXE
- BJL.EXE
- NIA.EXE
- OGD.EXE
- ZJH.EXE
- ZJK.EXE
- EXL.EXE
- EXO.EXE
- ANL.EXE
- LXM.EXE
- LXP.EXE
- STM.EXE
- SNEWYA.EXE
- OHG.EXE
- OZYNUA.EXE
- XPUZUA.EXE
- CKJ.EXE
- CKG.EXE
- UNC.EXE
- UGAPIA.EXE
- UNF.EXE
- SGK.EXE
- SZIXAA.EXE
- UNI.EXE
- UNL.EXE
- USYTIA.EXE
- WTC.EXE
- WMYSEA.EXE
- NTW.EXE
- OFN.EXE
- JSALUA.EXE
- IJL.EXE
- IJH.EXE
- IJI.EXE
- IJK.EXE
- IJM.EXE
- IJN.EXE
- IJQ.EXE
- IJX.EXE
- OWAQAC.EXE
- OWAQAB.EXE
- OWAQAD.EXE
- OWAQAA.EXE
- YDK.EXE
- YPYZEA.EXE
- YVYROA.EXE
- DDAQIA.EXE
- NHIXYA.EXE
- DLK.EXE
- QLOBIA.EXE
- PQC.EXE
- PHIDIA.EXE
- CMYRYA.EXE
- TVG.EXE
- ETUXAB.EXE
- DZEQOA.EXE
- TZAHYA.EXE
- HZUBUA.EXE
- HZUBUB.EXE
- HGZ.EXE
- ZLYDAA.EXE
- THK.EXE
- THN.EXE
- TZAHYB.EXE
- UXYXYA.EXE
- ZLYDAB.EXE
- PSENYA.EXE
- DLYLEA.EXE
- GXYLEA.EXE
- OJC.EXE
- OBEDAA.EXE
- OJF.EXE
- OBEDAB.EXE
- RJOSYA.EXE
- OPC.EXE
- WDD.EXE
- OJI.EXE
- WVAHUA.EXE
- WDC.EXE
- IFOFIA.EXE
- AREHEA.EXE
- NKANIA.EXE
- EHC.EXE
- EZUDAA.EXE
- RJEDUB.EXE
- CBOLEA.EXE
- CJT.EXE
- VLUWYB.EXE
- PPQ.EXE
- WPAZAA.EXE
- ZDC.EXE
- YVABOA.EXE
- YDC.EXE
- RBYGYA.EXE
- TDYZAA.EXE
- PSODYA.EXE
- RBW.EXE
- TBUZEA.EXE
- OHQ.EXE
- GSAWAA.EXE
- VWD.EXE
- NG2.EXE
- NG5.EXE
- QS0.EXE
- IL0.EXE
- RH0.EXE
- JM0.EXE
- YW0.EXE
- IJ0.EXE
- JZ0.EXE
- VC2.EXE
- VC3.EXE
- SM2.EXE
- JB2.EXE
- XF1.EXE
- QT1.EXE
- LV2.EXE
- JD1.EXE
- WL8.EXE
- BT8.EXE
- RZ3.EXE
- JR1.EXE
- GB1.EXE
- RZ6.EXE
- IQ0.EXE
- IQ3.EXE
- CM9.EXE
- GW1.EXE
- OD1.EXE
- PM1.EXE
- VT1.EXE
- PL1 .EXE
- UM6.EXE
- PF0.EXE
- UX1.EXE
- DD0.EXE
- QS1.EXE
- QS4.EXE
- KG1.EXE
- TH4.EXE
- TH1.EXE
- TH7.EXE
- BR1.EXE
- AF1.EXE
- IF0.EXE
- VR1.EXE
- VR3.EXE
- OO0.EXE
- PK1.EXE
- EY5.EXE
- 22557542.EXE
Filesizes
The following file size has been seen:
- 124,928 bytes
- 166,912 bytes
- 147,968 bytes
- 311,347 bytes
- 26,324 bytes
- 3,409,408 bytes
- 159,232 bytes
File Type
The filename STL.EXE refers to many versions of an executable program.
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