Troj/Iyus-G

Please follow the instructions for removing Trojans.

Troj/Iyus-G is a password-stealing Trojan. Troj/Iyus-G copies itself either to a subfolder of the Windows system folder called ZZTP or to a subfolder of the folder given in the registry entry

HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders\AppData

called Micrsoft\ZZTP, copying itself as svchost.exe. Troj/Iyus-G then sets the following registry entry so as to run itself on system startup:

HKLM\Software\Microsoft\Windows\CurrentVersion\Run\
zztp
<Path to Trojan folder>\svchost.exe

Troj/Iyus-G drops files named _KWUI.DLL and _KWUIEX.DLL in the same folder as itself. The DLLs monitor user activity, logging keystrokes and data transfer in files named _keys.log and _post.log.

Troj/Iyus-G runs in the background as a service process and periodically collates the gathered information then sends it to a remote location by FTP. Troj/Iyus-G may create an empty file in the Windows system folder called XTEMPX.XXX.

Troj/Iyus-G attempts to terminate the following security and anti-virus related processes:

_AVP32.EXE
_AVPCC.EXE
_AVPM.EXE
ACKWIN32.EXE
ALG.EXE
ANTI-TROJAN.EXE
APVXDWIN.EXE
ARMOR2NET.EXE
AUTODOWN.EXE
AVCONSOL.EXE
AVE32.EXE
AVGCTRL.EXE
AVKSERV.EXE
AVNT.EXE
AVP.EXE
AVP32.EXE
AVPCC.EXE
AVPDOS32.EXE
AVPM.EXE
AVPTC32.EXE
AVPUPD.EXE
AVSCHED32.EXE
AVWIN95.EXE
AVWUPD32.EXE
BLACKD.EXE
BLACKICE.EXE
CFIADMIN.EXE
CFIAUDIT.EXE
CFINET.EXE
CFINET32.EXE
CLAW95.EXE
CLAW95CF.EXE
CLEANER.EXE
CLEANER3.EXE
DVP95.EXE
DVP95_0.EXE
ECENGINE.EXE
ESAFE.EXE
ESPWATCH.EXE
F-AGNT95.EXE
F-PROT.EXE
F-PROT95.EXE
F-STOPW.EXE
FINDVIRU.EXE
FP-WIN.EXE
FPROT.EXE
FRW.EXE
IAMAPP.EXE
IAMSERV.EXE
IBMASN.EXE
IBMAVSP.EXE
ICLOAD95.EXE
ICLOADNT.EXE
ICMON.EXE
ICSUPP95.EXE
ICSUPPNT.EXE
IFACE.EXE
IOMON98.EXE
JEDI.EXE
LOCKDOWN2000.EXE
LOOKOUT.EXE
LUALL.EXE
MPFTRAY.EXE
N32SCANW.EXE
NAVAPW32.EXE
NAVLU32.EXE
NAVNT.EXE
NAVW32.EXE
NAVWNT.EXE
NISUM.EXE
NMAIN.EXE
NORMIST.EXE
NPROTECT.EXE
NUPGRADE.EXE
NVC95.EXE
NVSVC32.EXE
OUTPOST.EXE
PADMIN.EXE
PAVCL.EXE
PAVSCHED.EXE
PAVW.EXE
PCCWIN98.EXE
PCFWALLICON.EXE
PERSFW.EXE
RAV7.EXE
RAV7WIN.EXE
RESCUE.EXE
SAFEWEB.EXE
SAVSCAN.EXE
SCAN32.EXE
SCAN95.EXE
SCANPM.EXE
SCRSCAN.EXE
SERV95.EXE
SMC.EXE
SPHINX.EXE
SWEEP95.EXE
TBSCAN.EXE
TCA.EXE
TDS2-98.EXE
TDS2-NT.EXE
VET95.EXE
VETTRAY.EXE
VSCAN40.EXE
VSECOMR.EXE
VSHWIN32.EXE
VSSTAT.EXE
WEBSCANX.EXE
WFINDV32.EXE
ZONEALARM.EXE

Sophos's anti-virus products include proactive protection technology, which can defend against new threats without requiring an update. Sophos customers have been protected against Troj/Iyus-G (detected as Troj/Iyus-Fam) since version 3.87 (November 2004).