感谢网友not提供样本。
这是个利用ANI漏洞传播的木马群,其“动态插入进程”的功能是导致中招后杀毒困难的原因之一。
另:中招后,系统分区以外的.exe全被感染。这也是中此毒后的麻烦之处。
中招后的“症状”:进程列表中可见shualai.exe进程。
建议:用SRENG扫份日志保存,以便弄清基本情况,便于后面的手工杀毒操作。
手工查杀流程如下(用IceSword操作):
1、禁止进程创建。
2、根据SRENG日志,先结束病毒进程shualai.exe以及所有被病毒模块插入的进程(病毒插入了哪些进程,取决于你当时运行的程序。以下是我运行该样本后的例子。)
[PID: 484][C:\windows\Explorer.EXE] [Microsoft Corporation, 6.00.2900.2180 (x _ 2_rtm.040803-2158)]
[C:\DOCUME~1\baohelin\LOCALS~1\Temp\LgSy0.dll] [N/A, N/A]
[C:\DOCUME~1\baohelin\LOCALS~1\Temp\Msxo0.dll] [N/A, N/A]
[C:\DOCUME~1\baohelin\LOCALS~1\Temp\fyzo0.dll] [N/A, N/A]
[C:\DOCUME~1\baohelin\LOCALS~1\Temp\Rav30.dll] [N/A, N/A]
[C:\DOCUME~1\baohelin\LOCALS~1\Temp\Gjzo0.dll] [N/A, N/A]
[C:\DOCUME~1\baohelin\LOCALS~1\Temp\LgSy1.dll] [N/A, N/A]
[C:\windows\system32\cmdbcs.dll] [N/A, N/A]
[PID: 2252][C:\Program Files\Tiny Firewall Pro\amon.exe] [Computer A ociates International, Inc., 6.5.3.2]
[C:\DOCUME~1\baohelin\LOCALS~1\Temp\fyzo0.dll] [N/A, N/A]
[C:\DOCUME~1\baohelin\LOCALS~1\Temp\Msxo0.dll] [N/A, N/A]
[C:\DOCUME~1\baohelin\LOCALS~1\Temp\LgSy0.dll] [N/A, N/A]
[C:\DOCUME~1\baohelin\LOCALS~1\Temp\Gjzo0.dll] [N/A, N/A]
[C:\DOCUME~1\baohelin\LOCALS~1\Temp\Rav30.dll] [N/A, N/A]
[C:\DOCUME~1\baohelin\LOCALS~1\Temp\LgSy1.dll] [N/A, N/A]
[PID: 3880][C:\WINDOWS\system32\shadow\ShadowTip.exe] [PowerShadow, 1, 0, 0, 1]
[C:\DOCUME~1\baohelin\LOCALS~1\Temp\LgSy1.dll] [N/A, N/A]
[C:\DOCUME~1\baohelin\LOCALS~1\Temp\Gjzo0.dll] [N/A, N/A]
[C:\DOCUME~1\baohelin\LOCALS~1\Temp\Rav30.dll] [N/A, N/A]
[C:\DOCUME~1\baohelin\LOCALS~1\Temp\fyzo0.dll] [N/A, N/A]
[C:\DOCUME~1\baohelin\LOCALS~1\Temp\Msxo0.dll] [N/A, N/A]
[C:\DOCUME~1\baohelin\LOCALS~1\Temp\LgSy0.dll] [N/A, N/A]
[PID: 2760][C:\Program Files\SREng2\SREng.exe] [Smallfrogs Studio, 2.3.13.690]
[C:\DOCUME~1\baohelin\LOCALS~1\Temp\LgSy1.dll] [N/A, N/A]
[C:\DOCUME~1\baohelin\LOCALS~1\Temp\Gjzo0.dll] [N/A, N/A]
[C:\DOCUME~1\baohelin\LOCALS~1\Temp\Rav30.dll] [N/A, N/A]
[C:\DOCUME~1\baohelin\LOCALS~1\Temp\fyzo0.dll] [N/A, N/A]
[C:\DOCUME~1\baohelin\LOCALS~1\Temp\Msxo0.dll] [N/A, N/A]
[C:\DOCUME~1\baohelin\LOCALS~1\Temp\LgSy0.dll] [N/A, N/A]
[PID: 2548][C:\windows\shualai.exe] [N/A, N/A]
3、删除病毒文件(图1);清空IE临时文件夹。
4、删除病毒启动项(图2)。