用access-list 对抗“冲击波”病毒

      资源共享 2004-11-20 12:41
用access-list 对抗“冲击波”病毒
最近“冲击波”病毒”(WORM_MSBlast.A)开始在国内互联网和部分专网上传播。我以前在接入层做的access-list起了作用!
大家可以参考之

access-list 120 deny 53 any any
access-list 120 deny 55 any any
access-list 120 deny 77 any any
access-list 120 deny 103 any any

以上几条慎用!
access-list 120 deny tcp any any eq echo
access-list 120 deny tcp any any eq chargen
access-list 120 deny tcp any any eq 135
access-list 120 deny tcp any any eq 136
access-list 120 deny tcp any any eq 137
access-list 120 deny tcp any any eq 138
access-list 120 deny tcp any any eq 139
access-list 120 deny tcp any any eq 389
access-list 120 deny tcp any any eq 445
access-list 120 deny tcp any any eq 4444//新加
access-list 120 deny udp any any eq 69 //新加
access-list 120 deny udp any any eq 135
access-list 120 deny udp any any eq 136
access-list 120 deny udp any any eq 137
access-list 120 deny udp any any eq 138
access-list 120 deny udp any any eq 139
access-list 120 deny udp any any eq snmp
access-list 120 deny udp any any eq 389
access-list 120 deny udp any any eq 445
access-list 120 deny udp any any eq 1434
access-list 120 deny udp any any eq 1433
access-list 120 permit ip any any

附录:处理办法!
**********************************
(1)对于未感染的主机:
建议安http://microsoft.com/technet/securi...in/MS03-026.asp中指定的patch
(2)对于已感染的系统:
可能无法从Microsoft升级补丁,建议用以下方式处理:
I. 断掉机器的物理网络连接。
II. 执行注册表编辑命令:regedit, 检查

"HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\

CurrentVersion\Run\windows auto update" 中是

否存在 msblast.exe的键值,如果存在则删除。
III.运行任务管理器,关闭msblast.exe进程。
IV.完成用下述两种操作之一:
a.关闭DCOM: 设置HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Ole
中EnableDCOM键值为N.
b.设置防火墙或Microsoft's Internet
Connection Filter (ICF)阻止Incoming方向的以下端口:
69/UDP 135/TCP 135/UDP 139/TCP

139/UDP 445/TCP 445/UDP 4444/TCP。

V. 重新联接网络,安装http://microsoft.com/technet/securi...in/MS03-026.asp中指定的patch

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