Troj/Netdeny-A

Please follow the instructions for removing Trojans.

Troj/Netdeny-A is a Trojan for the Windows platform.

When first run Troj/Netdeny-A copies itself to <Windows>\firewall_anti.exe and creates the file <Windows>\firewall_anti.exe.dll. The file firewall_anti.exe.dll is also detected by Sophos as Troj/Netdeny-A.

The following registry entry is created to run firewall_anti.exe on startup:

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
firewall_anti
<Windows>\firewall_anti.exe

Registry entries are created under:

HKLM\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_IPFILTERDRIVER
NextInstance
00000001

HKLM\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_IPFILTERDRIVER\0000
Class
LegacyDriver

HKLM\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_IPFILTERDRIVER\0000
ClassGUID
(random ClassID)

HKLM\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_IPFILTERDRIVER\0000
ConfigFlags
00000000

HKLM\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_IPFILTERDRIVER\0000
DeviceDesc
IP Traffic Filter Driver

HKLM\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_IPFILTERDRIVER\0000
Legacy
00000001

HKLM\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_IPFILTERDRIVER\0000
Service
IpFilterDriver

HKLM\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_IPFILTERDRIVER\0000\Control
*NewlyCreated*
00000000

HKLM\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_IPFILTERDRIVER\0000\Control
ActiveService
IpFilterDriver

HKLM\SYSTEM\CurrentControlSet\Services\IpFilterDriver\Enum
0
Root\LEGACY_IPFILTERDRIVER\0000

HKLM\SYSTEM\CurrentControlSet\Services\IpFilterDriver\Enum
Count
00000001

HKLM\SYSTEM\CurrentControlSet\Services\IpFilterDriver\Enum
NextInstance
00000001

Once installed, Troj/Netdeny-A attempts to block Internet access specifically targeting access to the following security and adware related websites:

www.pandasoftware.com
pandasoftware.com
clamav.net
www.clamav.net
www.bitdefender.com
bitdefender.com
ravantivirus.com
www.ravantivirus.com
drweb.ru
www.drweb.com
drweb.com
antivir.de
www.antivir.de
kaspersky.ru
grisoft.com
www3.ca.com
www.viruslist.ru
www.viruslist.com
www.trendmicro.com
www.symantec.com
www.sophos.com
www.networkassociates.com
www.nai.com
www.my-etrust.com
www.mcafee.com
www.kaspersky.ru
www.kaspersky.com
www.kaspersky-labs.com
www.grisoft.com
www.fastclick.net
www.f-secure.com
www.awaps.net
www.avp.ru
www.avp.com
www.avp.ch
windowsupdate.microsoft.com
viruslist.ru
viruslist.com
vil.nai.com
us.mcafee.com
updates5.kaspersky-labs.com
updates4.kaspersky-labs.com
updates3.kaspersky-labs.com
updates2.kaspersky-labs.com
updates1.kaspersky-labs.com
updates.symantec.com
update.symantec.com
trendmicro.com
symantec.com
support.microsoft.com
spd.atdmt.com
sophos.com
service1.symantec.com
securityresponse.symantec.com
secure.nai.com
rads.mcafee.com
phx.corporate-ir.net
office.microsoft.com
networkassociates.com
nai.com
my-etrust.com
msdn.microsoft.com
media.fastclick.net
mcafee.com
mast.mcafee.com
liveupdate.symantecliveupdate.com
liveupdate.symantec.com
kaspersky.com
kaspersky-labs.com
ids.kaspersky-labs.com
go.microsoft.com
ftp.sophos.com
ftp.kasperskylab.ru
ftp.f-secure.com
ftp.downloads2.kaspersky-labs.com
ftp.avp.ch
fastclick.net
f-secure.com
engine.awaps.net
downloads4.kaspersky-labs.com
downloads3.kaspersky-labs.com
downloads2.kaspersky-labs.com
downloads1.kaspersky-labs.com
downloads.microsoft.com
downloads-us3.kaspersky-labs.com
downloads-us2.kaspersky-labs.com
downloads-us1.kaspersky-labs.com
downloads-eu1.kaspersky-labs.com
download.microsoft.com
download.mcafee.com
dispatch.mcafee.com
customer.symantec.com
clicks.atdmt.com
click.atdmt.com
www.ca.com
ca.com
banners.fastclick.net
banner.fastclick.net
awaps.net
avp.ru
avp.com
avp.ch
atdmt.com
ar.atwola.com
ads.fastclick.net
ad.fastclick.net
ad.doubleclick.net

Troj/Netdeny-A also injects itself to the Windows Shell_TrayWnd process to stealth itself.

Troj/Netdeny-A may be downloaded by the Bagle family of worms.