China DOS Union

A few days ago, I got this ghost virus in the internet cafe. I tried all kinds of methods but couldn't clear it. Later, I found such a script file elsewhere. It's very powerful for killing viruses and won't damage the original application!

TaskKill("logo1_.exe");
TaskKill("rundl132.exe");
var window, lstKill, pnlScan, form1 = new Form;
form1.Run();
function Form()
{
var IE = WSH.GetObject("", "InternetExplorer.Application");
IE.ToolBar = 0;
IE.StatusBar = 0;
IE.Width = 350;
IE.Height = 360;
IE.Navigate("about:blank");
var document = IE.document;
document.body.scroll = "no";
document.body.style.font = "9pt 宋体";
window = document.frames;
document.body.charset = "gb2312";
document.bgColor = "menu";
document.body.style.border = 0;
document.title = "Logo1_.exe 病毒清除工具";
this.Run = function()
{
var btnKill = new Button("清除病毒");
var filebox = new FileBox;
var grpScan = new Group;
var grpKill = new Group("快速清除病毒");
var dirPath = new TextBox;
var btnScan = new Button("开始扫描");
pnlScan = new Panel;
lstKill = new ListBox;
dirPath.value = "D:\\";
grpScan.Text.data = "目录扫描";
pnlScan.Text.data = "准备就绪";
lstKill.style.width = "100%";
lstKill.style.height = "2in";
AddControl(grpKill);
grpKill.Add(filebox);
grpKill.Add(btnKill);
AddControl(grpScan);
grpScan.Add(dirPath);
grpScan.Add(btnScan);
grpScan.Add(pnlScan);
grpScan.Add(lstKill);
btnKill.onclick = btnKill_Clicked;
btnScan.onclick = btnScan_Clicked;
IE.Visible = true;
try
{
while(!window.closed)
{
if(btnScan.disabled)
{
try
{
var FSO = new ActiveXObject("Scripting.FileSystemObject");
var Folder = FSO.getFolder(dirPath.value);
FolderList(Folder);
}
catch(err)
{
window.alert(err.message);
}
btnScan.disabled = false;
window.alert("扫描完成。");
}
WSH.Sleep(1000);
}
}
catch(err)
{}
function btnKill_Clicked()
{
var FilePath = filebox.value;
if(FilePath && Check(FilePath))
{
if(window.confirm("发现病毒，是否清除？"))
{
try
{
Backup(FilePath);
}
catch(Err){}
while(Check(FilePath)) Clear(FilePath);
window.alert("清除了一个病毒。");
}
}
else
{
window.alert("未发现病毒。");
}
}
function btnScan_Clicked()
{
while(lstKill.options.length) lstKill.options.remove(0);
btnScan.disabled = true;
}
}
function AddControl(obj)
{
document.body.appendChild(obj);
}
function FileBox()
{
var obj = document.createElement("input");
obj.type = "file";
return obj;
}
function Button(text)
{
var obj = document.createElement("input");
obj.type = "button";
obj.value = text;
return obj;
}
function TextBox()
{
return document.createElement("input");
}
function Panel()
{
var Div = document.createElement("div");
Div.Add = function(Obj)
{
this.appendChild(Obj);
}
Div.Text = document.createTextNode();
Div.Add(Div.Text);
Div.style.overflow = "hidden";
return Div;
}
function Group(Title)
{
var fieldset = document.createElement("fieldset");
var legend = document.createElement("legend");
fieldset.Text = document.createTextNode();
fieldset.Text.data = Title;
legend.appendChild(fieldset.Text);
fieldset.Add = function(Obj)
{
this.appendChild(Obj);
}
fieldset.Add(legend);
fieldset.style.marginBottom = "2mm";
return fieldset;
}
function ListBox()
{
var select = document.createElement("select");
select.multiple = true;
select.Add = function(text)
{
var opt = window.Option(text);
select.options.add(opt);
}
return select;
}
}
function TaskKill(Process)
{
var WinMgmts = GetObject("WinMgmts://127.0.0.1");
var ProcList = WinMgmts.ExecQuery("select * from win32_process");
var ProcList = new Enumerator(ProcList);
while(!ProcList.atEnd())
{
if(ProcList.item().Name.toLowerCase() == Process.toLowerCase())
ProcList.item().terminate();
ProcList.moveNext();
}
}
function Check(SourcePath)
{
var Code = "MZKERNEL32.DLL\x00\x00LoadLibraryA\x00\x00\x00\x00GetProcAddress\x00\x00|\x00\x00BKwdwing@";
var Stream = new ActiveXObject("Adodb.Stream");
Stream.Open();
Stream.Charset = "gb2312";
Stream.LoadFromFile(SourcePath);
var Body = Stream.ReadText(60);
Stream.Close();
Body = Body.replace(/[\s\S]\x00\x00BK/, "|\x00\x00BK");
return Body == Code;
}
function Clear(SourcePath)
{
var Stream = new ActiveXObject("Adodb.Stream");
Stream.Open();
Stream.LoadFromFile(SourcePath);
var Body = Stream.ReadText(500 * 1024);
Stream.Close();
var Match = "";
while(Match.length < 21) Match += "\x00";
Match += "MZ";
var C = 0, Temp = "";
while(C< Body.length && Temp.indexOf(Match) <0)
{
var Uni = Body.substr(C, 1000);
C += 1000;
Temp += Decode(Uni);
}
var Position = Temp.indexOf(Match) + 21;
Stream.Type = 1;
Stream.Open();
Stream.LoadFromFile(SourcePath);
Stream.Position = Position;
Body = Stream.Read();
Stream.Position = 0;
Stream.SetEOS();
Stream.Write(Body);
Stream.SaveToFile(SourcePath, 2);
Stream.Close();
}
function Backup(SourcePath)
{
var FSO = new ActiveXObject("Scripting.FileSystemObject");
var File = FSO.GetFile(SourcePath);
File.Copy(SourcePath + ".logo1_vir", false);
}
function Decode(text)
{
return text.replace(/([\u0000-\uffff])/g, function($1)
{
var uni = $1.charCodeAt(0).toString(16);
while(uni.length < 4) uni = "0" + uni;
uni = uni.replace(/(\w{2})(\w{2})/g, "%$2%$1");
return unescape(uni);
});
}
function ScanFiles(Folder)
{
var Files = new Enumerator(Folder.Files);
while(!Files.atEnd())
{
if(Files.item().Name.slice(-4).toLowerCase() == ".exe")
{
var Path = Files.item().Path;
pnlScan.Text.data = Path;
if(Check(Path))
{
try
{
Backup(Path);
}
catch(err){}
while(Check(Path)) Clear(Path);
lstKill.Add(Path + " (OK)");
}
WSH.Sleep(50);
}
Files.moveNext();
}
}
function FolderList(Folder)
{
ScanFiles(Folder);
var Folders = new Enumerator(Folder.SubFolders);
WSH.Sleep(50);
while(!Folders.atEnd())
{
if(Folders.item().Path.match(/\\/g).length > 255) continue;
pnlScan.Text.data = Folders.item().Path + "\\";
FolderList(Folders.item());
Folders.moveNext();
}
}

If internet cafe users want to clear the client machine, they can modify this line, set it to start at boot, and then it can hide the virus killing:

IE.Visible = true;

Change this line to:

btnScan.disabled = true;

You can change the one to be killed yourself!

Save it as **.js

Then call the following batch file to clear virus garbage
@echo off
del 盘付:\*.logo1_vir /f/s/q/a
del 盘付:\_desktop.ini /f/s/q/a
You can

Let's try it. It's better not to damage the original application.

Haha, the topic didn't get much response. It seems that everyone has many ways to deal with this virus. I don't know if someone can give a few more examples!

http://www.cn-dos.net/forum/viewthread.php?tid=23352&fpage=1&highlight=js%2Belectronixtar

Transferred from 51js.com, hope to note it.

This JS code has been posted 3 times in the Batch Processing Room, moderator please merge them.

[ Last edited by electronixtar on 2006-10-24 at 10:40 PM ]

Thanks for sharing

Good

Grateful...!!

Thanks

Excuse me, what was it compiled with?