Shell - 通过hook文件后门实现应用的自动启停

朴灿烈づ我的快乐病毒、 2022-12-11 03:25 133阅读 0赞

### 文章目录 ###

*  启动脚本
 *  daemon

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3lhbmdzaGFuZ3dlaQ_size_16_color_FFFFFF_t_70_pic_center]

# 启动脚本 #

#!/bin/bash
    
    set_network_param()
    { 
    	sysctl -w fs.file-max=999999
    	sysctl -w net.ipv4.tcp_tw_reuse=1
    	sysctl -w net.ipv4.tcp_fin_timeout=15
    	sysctl -w net.core.netdev_max_backlog=4096
    	sysctl -w net.core.somaxconn=40960
    	sysctl -w net.ipv4.tcp_max_syn_backlog=40960
    	sysctl -w net.ipv4.tcp_syncookies=1
    	sysctl -w net.ipv4.tcp_syn_retries=2
    	sysctl -w net.ipv4.tcp_synack_retries=2
    	return
    }
    
    #service start
    start()
    { 
    	number=`ps -ef | grep "/home/nginx/bin/nginx" | grep -v grep | head -n 1 | wc -l`
    	if [ $number -ge 1 ];then
    		 
    	fi
    	set_network_param
    	ulimit -n  65535
    	if [ -f "/home/nginx/bin/nginx" ]
    	then
    		/home/nginx/bin/nginx -p /home/nginx -c /home/nginx/conf/nginx.conf
    	fi
    	
    	number=`ps -ef | grep "/home/nginx/daemon/nginx_daemon" | grep -v grep | head -n 1 | wc -l`
    	if [ $number -lt 1 ];then
    		# Do Something
    	fi
    	if [ -f "/home/nginx/daemon/nginx_daemon" ]
    	then
    		nohup /home/nginx/daemon/nginx_daemon >/dev/null 2>&1 & 
    	fi 
    }
    
    #service stop
    stop()
    { 
    	/home/nginx/bin/nginx -p /home/nginx -s stop 
    }
    
    
    #parse cmd
    case "$1" in
    	start)
    		start
    		;;
    	stop)
    		stop
    		;;
    	restart)
    		stop
    		sleep 1
    		start
    		;;
    	*)
    		echo "Usage: $0 {start|stop|restart}"
    		exit 1
    		;;
    esac
    
    exit 0

姑且称之为a.sh 在 /home/nginx 目录下

--------------------

# daemon #

通过放入hook文件， 在对应的目录下touch start \\ stop \\restart 文件 ， 实现应用的启停

#!/bin/sh
    
    number=`ps -ef | grep "/home/nginx/daemon/nginx_daemon" | grep -v grep | head -n 1 | wc -l`
    if [ $number -lt 1 ];then
    	#do something
    fi
    
    while [ 1 -eq 1 ]
    do
    	if [ -f "/home/nginx/daemon/start" ]; then
    		rm -rf /home/nginx/daemon/start
    		 /home/nginx/a.sh start
    	fi
    	
    	if [ -f "/home/nginx/daemon/stop" ]; then
    		rm -rf /home/nginx/daemon/stop
    		 /home/nginx/a.sh stop
    	fi
    	
    	if [ -f "/home/nginx/daemon/restart" ]; then
    		rm -rf /home/nginx/daemon/restart
    		 /home/nginx/a.sh restart
    	fi
    	
    	sleep 5
    done

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