For remove W32.Sality.AE virus,please clean/delete all W32.Sality.AE infected files and Delete/Modify any values W32.Sality.AE added to the registry as following:
When the virus is executed, it copies itself as the following file: %System%\drivers\[RANDOM FILE NAME].sys
The virus creates the following mutex so only one instance of the virus is running: Op1mutx9
It then creates the following registry entry so that it bypasses the Windows Firewall: HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\"[INFECTED FILE]" = "[INFECTED FILE]:*:Enabled:ipsec"
It then registers itself as a new service with the following characteristics: Service Name: WMI_MFC_TPSHOKER_80 Display Name: WMI_MFC_TPSHOKER_80 Startup Type: Automatic
It then deletes itself.
It stops the following services:
ALG
aswUpdSv
avast! Antivirus
avast! Mail Scanner
avast! Web Scanner
BackWeb Plug-in - 4476822
bdss
BGLiveSvc
BlackICE
CAISafe
ccEvtMgr
ccProxy
ccSetMgr
F-Prot Antivirus Update Monitor
fsbwsys
FSDFWD
F-Secure Gatekeeper Handler Starter
fshttps
FSMA
InoRPC
InoRT
InoTask
ISSVC
KPF4
LavasoftFirewall
LIVESRV
McAfeeFramework
McShield
McTaskManager
navapsvc
NOD32krn
NPFMntor
NSCService
Outpost Firewall main module
OutpostFirewall
PAVFIRES
PAVFNSVR
PavProt
PavPrSrv
PAVSRV
PcCtlCom
PersonalFirewal
PREVSRV
ProtoPort Firewall service
PSIMSVC
RapApp
SmcService
SNDSrvc
SPBBCSvc
Symantec Core LC
Tmntsrv
TmPfw
tmproxy
UmxAgent
UmxCfg
UmxLU
UmxPol
vsmon
VSSERV
WebrootDesktopFirewallDataService
WebrootFirewall
XCOMM
AVP
It infects all executable files listed in the following registry subkey: HKEY_CURRENT_USER\Software\Microsoft\Windows\ShellNoRoam\MUICache
It infects all .exe executable files listed in the following registry subkeys:
It also infects all .exe and .scr files on the C drive and on any writable network resource, except the files on any folder with the following strings:
SYSTEM
AHEAD
The infected file size will increase 57,344 bytes.
It deletes any file whose name contains any of the following strings:
.VDB
.AVC
.KEY
drw
_AVPM
A2GUARD
AAVSHIELD
AVAST
ADVCHK
AHNSD
AIRDEFENSE
ALERTSVC
ALMON
ALOGSERV
ALSVC
AMON
ANTI-TROJAN
AVZ
ANTIVIR
ANTS
APVXDWIN
ARMOR2NET
ASHAVAST
ASHDISP
ASHENHCD
ASHMAISV
ASHPOPWZ
ASHSERV
ASHSIMPL
ASHSKPCK
ASHWEBSV
ASWUPDSV
ATCON
ATUPDATER
ATWATCH
AUPDATE
AUTODOWN
AUTOTRACE
AUTOUPDATE
AVCIMAN
AVCONSOL
AVENGINE
AVGAMSVR
AVGCC
AVGCC32
AVGCTRL
AVGEMC
AVGFWSRV
AVGNT
AVGNTDD
AVGNTMGR
AVGSERV
AVGUARD
AVGUPSVC
AVINITNT
AVKSERV
AVKSERVICE
AVKWCTL
AVP
AVP32
AVPCC
AVPM
AVPUPD
AVSCHED32
AVSYNMGR
AVWUPD32
AVWUPSRV
AVXMONITOR9X
AVXMONITORNT
AVXQUAR
BACKWEB-4476822
BDMCON
BDNEWS
BDOESRV
BDSS
BDSUBMIT
BDSWITCH
BLACKD
BLACKICE
CAFIX
CCAPP
CCEVTMGR
CCPROXY
CCSETMGR
CFIAUDIT
CLAMTRAY
CLAMWIN
CLAW95
CLAW95CF
CLEANER
CLEANER3
CLISVC
CMGRDIAN
CUREIT
DEFWATCH
DOORS
DRVIRUS
DRWADINS
DRWEB32W
DRWEBSCD
DRWEBUPW
ESCANH95
ESCANHNT
EWIDOCTRL
EZANTIVIRUSREGISTRATIONCHECK
F-AGNT95
FAMEH32
FAST
FCH32
FILEMON
FIRESVC
FIRETRAY
FIREWALL
FPAVUPDM
F-PROT95
FRESHCLAM
FRW
FSAV32
FSAVGUI
FSBWSYS
F-SCHED
FSDFWD
FSGK32
FSGK32ST
FSGUIEXE
FSM32
FSMA32
FSMB32
FSPEX.
FSSM32
F-STOPW
GCASDTSERV
GCASSERV
GIANTANTISPYWAREMAIN
GIANTANTISPYWAREUPDATER
GUARDGUI
GUARDNT
HREGMON
HRRES
HSOCKPE
HUPDATE
IAMAPP
IAMSERV
ICLOAD95
ICLOADNT
ICMON
ICSSUPPNT
ICSUPP95
ICSUPPNT
IFACE
INETUPD
INOCIT
INORPC
INORT
INOTASK
INOUPTNG
IOMON98
ISAFE
ISATRAY
ISRV95
ISSVC
KAV
KAVMM
KAVPF
KAVPFW
KAVSTART
KAVSVC
KAVSVCUI
KMAILMON
KPFWSVC
KWATCH
LOCKDOWN2000
LOGWATNT
LUALL
LUCOMSERVER
LUUPDATE
MCAGENT
MCMNHDLR
MCREGWIZ
MCUPDATE
MCVSSHLD
MINILOG
MYAGTSVC
MYAGTTRY
NAVAPSVC
NAVAPW32
NAVLU32
NAVW32
NOD32
NEOWATCHLOG
NEOWATCHTRAY
NISSERV
NISUM
NMAIN
NOD32
NORMIST
NOTSTART
NPAVTRAY
NPFMNTOR
NPFMSG
NPROTECT
NSCHED32
NSMDTR
NSSSERV
NSSTRAY
NTRTSCAN
NTXCONFIG
NUPGRADE
NVC95
NVCOD
NVCTE
NVCUT
NWSERVICE
OFCPFWSVC
OUTPOST
PAV
PAVFIRES
PAVFNSVR
PAVKRE
PAVPROT
PAVPROXY
PAVPRSRV
PAVSRV51
PAVSS
PCCGUIDE
PCCIOMON
PCCNTMON
PCCPFW
PCCTLCOM
PCTAV
PERSFW
PERTSK
PERVAC
PNMSRV
POP3TRAP
POPROXY
PREVSRV
PSIMSVC
QHM32
QHONLINE
QHONSVC
QHPF
QHWSCSVC
RAVMON
RAVTIMER
REALMON
REALMON95
RFWMAIN
RTVSCAN
RTVSCN95
RULAUNCH
SAVADMINSERVICE
SAVMAIN
SAVPROGRESS
SAVSCAN
SCAN32
SCANNINGPROCESS
CUREIT
SDHELP
SHSTAT
SITECLI
SPBBCSVC
SPHINX
SPIDERML
SPIDERNT
SPIDERUI
SPYBOTSD
SPYXX
SS3EDIT
STOPSIGNAV
SWAGENT
SWDOCTOR
SWNETSUP
SYMLCSVC
SYMPROXYSVC
SYMSPORT
SYMWSC
SYNMGR
TAUMON
TBMON
TC
TCA
TCM
TDS-3
TEATIMER
TFAK
THAV
THSM
TMAS
TMLISTEN
TMNTSRV
TMPFW
TMPROXY
TNBUTIL
TRJSCAN
UP2DATE
VBA32ECM
VBA32IFS
VBA32LDR
VBA32PP3
VBSNTW
VCHK
VCRMON
VETTRAY
VIRUSKEEPER
VPTRAY
VRFWSVC
VRMONNT
VRMONSVC
VRRW32
VSECOMR
VSHWIN32
VSMON
VSSERV
VSSTAT
WATCHDOG
WEBPROXY
WEBSCANX
WEBTRAP
WGFE95
WINAW32
WINROUTE
WINSS
WINSSNOTIFY
WRADMIN
WRCTRL
XCOMMSVR
ZATUTOR
ZAUINST
ZLCLIENT
ZONEALARM
It connects to the following URLs to get instructions. The instructions contain additional URLs to possibly download other malicious files:
[http://]pedmeo222nb.info
[http://]pzrk.ru
[http://]technican.w.interia.pl
[http://]www.kjwre9fqwieluoi.info
[http://]bpowqbvcfds677.info
[http://]bmakemegood24.com
[http://]bperfectchoice1.com
[http://]bcash-ddt.net
[http://]bddr-cash.net
[http://]btrn-cash.net
[http://]bmoney-frn.net
[http://]bclr-cash.net
[http://]bxxxl-cash.net
[http://]balsfhkewo7i487fksd.info
[http://]buynvf96.info
It prevents access to various security-related domains containing any of the following strings:
Cureit
Drweb
Onlinescan
Spywareinfo
Ewido
Virusscan
Windowsecurity
Spywareguide
Bitdefender
Panda software
Agnmitum
Virustotal
Sophos
Trend Micro
Etrust.com
Symantec
McAfee
F-Secure
Eset.com
Kaspersky
It then adds following entry to %Windir%\system.ini: [MCIDRV_VER]
Recommendations
Symantec Security Response encourages all users and administrators to adhere to the following basic security "best practices":
Turn off and remove unneeded services. By default, many operating systems install auxiliary services that are not critical, such as an FTP server, telnet, and a Web server. These services are avenues of attack. If they are removed, blended threats have less avenues of attack and you have fewer services to maintain through patch updates.
If a blended threat exploits one or more network services, disable, or block access to, those services until a patch is applied.
Always keep your patch levels up-to-date, especially on computers that host public services and are accessible through the firewall, such as HTTP, FTP, mail, and DNS services (for example, all Windows-based computers should have the current Service Pack installed.). Additionally, please apply any security updates that are mentioned in this writeup, in trusted Security Bulletins, or on vendor Web sites.
Enforce a password policy. Complex passwords make it difficult to crack password files on compromised computers. This helps to prevent or limit damage when a computer is compromised.
Configure your email server to block or remove email that contains file attachments that are commonly used to spread viruses, such as .vbs, .bat, .exe, .pif and .scr files.
Isolate infected computers quickly to prevent further compromising your organization. Perform a forensic analysis and restore the computers using trusted media.
Train employees not to open attachments unless they are expecting them. Also, do not execute software that is downloaded from the Internet unless it has been scanned for viruses. Simply visiting a compromised Web site can cause infection if certain browser vulnerabilities are not patched.
For successful remove W32.Sality.AE virus,you may also need do as following:
1. Temporarily Disable System Restore .
2. Update the virus definitions. Reboot computer in SafeMode;
