BFi numero 08 anno 3 file 28 di 28

eZine lover (@eZine)

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Butchered From Inside

 · 22 Aug 2019

  

============================================================================== 
------------[ BFi numero 8, anno 3 - 30/04/2000 - file 28 di 28 ]------------- 
============================================================================== 

 
-[ MiSCELLANE0US ]------------------------------------------------------------ 
---[ SNiP2 Beta: NAME DETECTi0N & DiR ANALYSiS 
-----[ pIGpEN <pigpen@s0ftpj.org> <deadhead@sikurezza.org> 

 
Eccoci qui con una prima versione dello snip che potrebbe avere un  
significato... 

L'uso e' semplicissimo... 

./snip2 nomefile o nomedir 

E lo snip2 scopre da solo se si tratta di directory o file... 

 
[ Uso con file ] 

$ snip2 articolo 
	Detected file -> baubau.c 

 
[ Uso con directory ] 

$ snip2 BFi07 

(.) ...skipping 
(..) ...skipping 
(snip.tgz) ...not found 
(BFi07-01) ...bfi file!  
(BFi07-02) ...bfi file! 
(BFi07-03) ...bfi file! 
(BFi07-04) ...bfi file! 
(BFi07-05) ...bfi file! 
(vcrypt32.zip) ...not found 
(BFi07-06) ...bfi file! 
(BFi07-07) ...bfi file! 
		Detected file -> nmb_comp_decomp.c 
(BFi07-08) ...bfi file! 
		Detected file -> spoof_lin_lkm.c 
		Detected file -> ip_spoof_detect.c 
(BFi07-09) ...bfi file! 
		Detected file -> gork.c 
(BFi07-10) ...bfi file! 
(BFi07-11) ...bfi file! 
		Detected file -> exploit 
(BFi07-12) ...bfi file! 
		Detected file -> B0CKc.c 
		Detected file -> B0CKs.c 
		Detected file -> B0CKb.c 
		Detected file -> igmplog.c 
(BFi07-13) ...bfi file! 
		Detected file -> icmp_tunnel.h 
(BFi07-14) ...bfi file! 
(BFi07-15) ...bfi file! 
(BFi07-16) ...bfi file! 
(BFi07-17) ...bfi file! 
(BFi07-18) ...bfi file! 
(BFi07-19) ...bfi file! 
(BFi07-20) ...bfi file! 
(BFi07-21) ...bfi file! 
(BFi07-22) ...bfi file! 
(bfisrc) ...skipping 

$ ls BFi07/bfisrc 

B0CKb.c 
B0CKc.c 
B0CKs.c 
exploit 
gork.c 
icmp_tunnel.h 
igmplog.c 
ip_spoof_detect.c 
nmb_comp_decomp.c 
spoof_lin_lkm.c 

 
[ Il codice ] 

/* 
 * Name: SNiP V.2 Beta 
 * Date: Tue Feb 15 01:00:26 2000 
 * Author: pIGpEN [pigpen@s0ftpj.org, deadhead@sikurezza.org] 
 * 
 * SoftProject Digital Security for Y2K (www.s0ftpj.org) 
 * Sikurezza.org Italian Security MailingList (www.sikurezza.org) 
 *  
 * COFFEE-WARE LICENSE - This source code is like "THE BEER-WARE LICENSE" by 
 * Poul-Henning Kamp <phk@FreeBSD.ORG> but you can give me in return a coffee. 
 *  
 * Tested on: FreeBSD 4.0-19990705-CURRENT FreeBSD 4.0-19990705-CURRENT #6 i386 
 * 	      Linux 2.2.5-15 #1 
 */ 

 
#include <stdio.h> 
#include <string.h> 
#include <unistd.h> 
#include <sys/types.h> 
#include <sys/stat.h> 
#include <ctype.h> 
#include <dirent.h> 

#define BFIART	"BFi" 

#define BFISEP "<-| " 
#define BFIEND "<-X->" 
#define	BFISEP_LEN	strlen(BFISEP) 

#define BUF_SIZE	255 
#define DIRNAME		"bfisrc" 

#define FILE_MODE	0 
#define DIR_MODE	1 

void usage	(char *cmd); 
void dir2file	(char *dirname); 
void snip	(char *filename, int mode); 
void checktype	(char *name); 
void makedir	(char *dirname); 

extern char *optarg; 

int main(int narg, char **arg) 
{ 
	(narg!=2)	?	usage(arg[0])	:	checktype(arg[1]); 

	return 0; 
	 
}	 

void usage(char *cmd) 
{ 
	printf("\nSNiPv2 - pIGpEN / softpj\n" 
	       "Under COFFEE-WARE License\n" 
	       "Usage: %s dir-or-file\n\n", cmd); 
}	 

void checktype(char *name) 
{ 
	struct stat chk; 

	if(stat(name,&chk)) { 
		printf("Hmm %s doesn't exist\n", name); 
		exit(0); 
	} 

	if(chk.st_mode & S_IFREG) snip(name, FILE_MODE); 
	if(chk.st_mode & S_IFDIR) dir2file(name); 

} 
			 

void dir2file(char *dirname) 
{ 
	DIR *dp; 
	struct dirent *de; 
	char currentdir[BUF_SIZE]; 

 
	if(!getcwd(currentdir, sizeof(currentdir))) {  
		perror("[dir2file] getcwd()"); 
		exit(0); 
	} 

	if(!(dp=opendir(dirname))) { 
		perror("[dir2file] opendir"); 
		exit(0); 
	} 

	if(chdir(dirname) == -1) { 
		perror("[dir2file] chdir1"); 
		exit(0); 
	} 

	while((de=readdir(dp))) { 

		printf("(%s) ...", de->d_name); 
		 
		switch(de->d_type) { 
			case DT_FIFO: 
			case DT_BLK: 
			case DT_LNK: 
			case DT_DIR: 
			case DT_SOCK:	printf("skipping\n"); 
					continue; 
		} 
		 
		if(strstr(de->d_name, BFIART)) { 
			printf("bfi file!\n"); 
			chdir(dirname); 
			snip(de->d_name,DIR_MODE); 
		}else printf("not found\n"); 
	} 

 	if( chdir(currentdir) == -1) { 
		perror("[dir2file] chdir2"); 
		exit(0); 
	} 
	 
	closedir(dp); 
}	 

void snip(char *filename, int mode) 
{ 
	FILE *in, *out; 
	char buf[BUF_SIZE]; 
	int i; 
	static int passed = 0; 
	char ofile[BUF_SIZE]; 

	bzero(ofile, sizeof(ofile)); 

	if(!(in=fopen(filename,"r"))) { 
		perror("[snip] fopen()"); 
		exit(0); 
	} 

 
	while(fgets(buf, BUF_SIZE, in)) { 
		if(!strncmp(buf, BFISEP, BFISEP_LEN)) { 
			 
			for(i=0; !isspace((int) buf[BFISEP_LEN+i]); i++)  
				ofile[i] = buf[BFISEP_LEN+i]; 
			 
			ofile[i] = '\0'; 
			 
			printf("\t\tDetected file -> %s\n", ofile); 

			switch(mode) { 
				case DIR_MODE: 
						if(!passed) { 
							makedir(DIRNAME); 
							passed = 1; 
						} 
						chdir("bfisrc");		 
						break; 
			} 

 
			if(!(out = fopen(ofile, "w"))) { 
				perror("[snip] fopen() #2"); 
				exit(0); 
			} 

			while(fgets(buf, BUF_SIZE, in) &&  
			      !strstr(buf, BFIEND)) fprintf(out,"%s",buf); 

			fclose(out); 

			if(passed && DIR_MODE) chdir(".."); 
		}	 
	} 
				 
	fclose(in);	 
} 

void makedir(char *dirname)  
{ 
	mkdir(dirname, S_IRWXU | S_IRWXG | S_IRWXO); 
} 

 
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