详尽了解找出防范IFEO映像劫持病毒方法

来源：pcdog 作者：佚名出处：巧巧读书 2007-06-22 进入讨论组

三、映像胁持的基本原理：

NT系统在试图执行一个从命令行调用的可执行文件运行请求时，先会检查运行程序是不是可执行文件，如果是的话，再检查格式的，然后就会检查是否存在。如果不存在的话，它会提示系统找不到文件或者是“指定的路径不正确等等。当然，把这些键删除后，程序就可以运行！

四，映像胁持的具体案例：

引用JM的jzb770325001版主的一个分析案例，蔚为壮观的IFEO，稍微有些名气的都挂了：

HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avp.exe

HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\AgentSvr.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\CCenter.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\Rav.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\RavMonD.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\RavStub.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\RavTask.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\rfwcfg.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\rfwsrv.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\RsAgent.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\Rsaupd.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\runiep.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\SmartUp.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\FileDsty.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\RegClean.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\360tray.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\360Safe.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\360rpt.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\kabaload.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\safelive.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\Ras.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\KASMain.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\KASTask.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\KAV32.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\KAVDX.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\KAVStart.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\KISLnchr.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\KMailMon.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\KMFilter.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\KPFW32.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\KPFW32X.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\KPFWSvc.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\KWatch9x.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\KWatch.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\KWatchX.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\TrojanDetector.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\UpLive.EXE.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\KVSrvXP.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\KvDetect.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\KRegEx.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\kvol.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\kvolself.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\kvupload.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\kvwsc.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\UIHost.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\IceSword.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\iparmo.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\mmsk.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\adam.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\MagicSet.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\PFWLiveUpdate.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\SREng.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\WoptiClean.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\scan32.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\shcfg32.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\mcconsol.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\HijackThis.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\mmqczj.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\Trojanwall.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\FTCleanerShell.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\loaddll.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\rfwProxy.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\KsLoader.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\KvfwMcl.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\autoruns.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\AppSvc32.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ccSvcHst.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\isPwdSvc.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\symlcsvc.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\nod32kui.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avgrssvc.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\RfwMain.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\KAVPFW.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\Iparmor.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\nod32krn.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\PFW.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\RavMon.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\KAVSetup.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\NAVSetup.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\SysSafe.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\QHSET.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\zxsweep.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\AvMonitor.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\UmxCfg.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\UmxFwHlp.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\UmxPol.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\UmxAgent.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\UmxAttachment.exe

从这个案例，我们可以看到这个技术的强大之处！很多的杀软进程和一些辅助杀软或工具，全部被胁持，导致你遇到的所有杀软都无法运行！

试想如果更多病毒，利用于此，将是多么可怕的事情！

五、如何解决并预防IFEO？

方法一：限制法（转自网络搜索） ——此方法经测试非常有效，即使中毒了，辅助工具仍然能运行，如SREng，这样的就方便清除病毒，所以强烈推荐一般用户操作一次。

它要修改Image File Execution Options，所先要有权限，才可读，于是一条思路就成了。

开始-运行-regedt32 （这个是系统的32位注册表，和注册表操作方法差不多）然后还是展开到：HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options 右键——选择权限