Linux.Siggen.180

from: https://vms.drweb.com/virus/?i=15455134&lng=en

Linux.Siggen.180
Added to Dr.Web virus database: 2017-07-05
Virus description was added: 2017-07-05

Technical Information

To ensure autorun and distribution:

Creates or modifies the following files:

• /etc/init.d/acpidtd
• /etc/rc.d/rc*.d/S01acpidtd

Creates or modifies the following symlinks:

• /etc/rc0.d/S01acpidtd
• /etc/rc1.d/S01acpidtd
• /etc/rc2.d/S01acpidtd
• /etc/rc3.d/S01acpidtd
• /etc/rc4.d/S01acpidtd
• /etc/rc5.d/S01acpidtd
• /etc/rc6.d/S01acpidtd

Malicious functions:

Launches itself as a daemon
Replaces the following system files:

• /bin/ss
• /bin/netstat

Launches processes:

• sh -c /tmp/tmpnam_PGNdDO upgrade;sleep 1;rm -f /tmp/tmpnam_PGNdDO
• /tmp/tmpnam_PGNdDO upgrade
• /bin/sh ##which ss 1>/dev/null 2>&1
• which ss
• /bin/sh ##which ss
• /bin/sh ##which netstat 1>/dev/null 2>&1
• which netstat
• /bin/sh ##chattr -i /bin/ddus-uidgen /etc/init.d/acpidtd /etc/rc.d/rc*.d/S01acpidtd /bin/ss /bin/scss /bin/netstat /bin/scnetstat 1>/dev/null 2>&1
• chattr -i /bin/ddus-uidgen /etc/init.d/acpidtd /etc/rc.d/rc*.d/S01acpidtd /bin/ss /bin/scss /bin/netstat /bin/scnetstat
• /bin/sh ##cp -f /tmp/tmpnam_PGNdDO /bin/ddus-uidge
• cp -f /tmp/tmpnam_PGNdDO /bin/ddus-uidgen
• cp -f /bin/ddus-uidgen /etc/init.d/acpidtd
• /bin/sh ##chmod +x /bin/scss 1>/dev/null 2>&1;
• chmod +x /bin/scss
• ##cp -f /tmp/tmpnam_PGNdDO /bin/ss 1>/dev/null 2>&1;touch -r /bin/sh /bin/ss /bin/scss 1>/dev/null 2>&1;
• ln -fs /etc/init.d/acpidtd /etc/rc0.d/S01acpidtd
• cp -f /tmp/tmpnam_PGNdDO /bin/ss
• ln -fs /etc/init.d/acpidtd /etc/rc1.d/S01acpidtd
• ln -fs /etc/init.d/acpidtd /etc/rc2.d/S01acpidtd
• ln -fs /etc/init.d/acpidtd /etc/rc3.d/S01acpidtd
• touch -r /bin/sh /bin/ss /bin/scss
• ln -fs /etc/init.d/acpidtd /etc/rc4.d/S01acpidtd
• ln -fs /etc/init.d/acpidtd /etc/rc5.d/S01acpidtd
• ln -fs /etc/init.d/acpidtd /etc/rc6.d/S01acpidtd
• ln -fs /etc/init.d/acpidtd /etc/rc.d/rc0.d/S01acpidtd
• ln -fs /etc/init.d/acpidtd /etc/rc.d/rc1.d/S01acpidtd
• ln -fs /etc/init.d/acpidtd /etc/rc.d/rc2.d/S01acpidtd
• ln -fs /etc/init.d/acpidtd /etc/rc.d/rc3.d/S01acpidtd
• ln -fs /etc/init.d/acpidtd /etc/rc.d/rc4.d/S01acpidtd
• ln -fs /etc/init.d/acpidtd /etc/rc.d/rc5.d/S01acpidtd
• /bin/sh ##chattr +i /bin/ddus-uidgen /etc/init.d/acpidtd /etc/rc.d/rc*.d/S01acpidtd /bin/ss /bin/scss /bin/netstat /bin/scnetstat 1>/dev/null 2>&1
• ln -fs /etc/init.d/acpidtd /etc/rc.d/rc6.d/S01acpidtd
• chattr +i /bin/ddus-uidgen /etc/init.d/acpidtd /etc/rc.d/rc*.d/S01acpidtd /bin/ss /bin/scss /bin/netstat /bin/scnetstat
• touch -r /bin/sh /bin/ddus-uidgen /etc/init.d/acpidtd /etc/rc.d/rc*.d/S01acpidtd
• /bin/sh ##chmod +x /bin/scnetstat 1>/dev/null 2>&1;
• chmod +x /bin/scnetstat
• ##cp -f /tmp/tmpnam_PGNdDO /bin/netstat 1>/dev/null 2>&1;touch -r /bin/sh /bin/netstat /bin/scnetstat 1>/dev/null 2>&1;
• cp -f /tmp/tmpnam_PGNdDO /bin/netstat
• touch -r /bin/sh /bin/netstat /bin/scnetstat
• sleep 1
• rm -f /tmp/tmpnam_PGNdDO

Performs operations with the file system:

Modifies file access rights:

• /tmp/tmpnam_PGNdDO
• /bin/scss
• /bin/scnetstat

Creates or modifies files:

• /tmp/tmpnam_PGNdDO
• /bin/ddus-uidgen
• /bin/scss
• /bin/scnetstat

Deletes files:

• /tmp/tmpnam_PGNdDO

Network activity:

Establishes connection:

• 16#.##.30.212:3646
• 11#.##.33.59:2382
• 58.##.32.135:8534
• 22#.##.116.233:8414
• 22#.###.214.158:9803

DNS ASK:

• 12#.211
• 22#.204
• wi###o1n3.pw

from: https://yq.aliyun.com/ask/57692

wipefs是linux自带的程序，用来擦除文件系统数据，也就是下面那个人回答的。正常的wipefs，路径在/usr/bin/wipefs，如果你没有做设置，不会自启动，也不会大量占用cpu。你可以看一下是否是 /bin/wipefs 进程，如果是，应该是你的机器被黑了，这是别人在你机器上放了挖矿程序。

此程序会：
1.进行挖矿计算，大量占用cpu。
2.复制自己到/bin/wipefs，创建服务/etc/init.d/wipefs，在 /etc/rc.d 和 /etc/rc.d/rc.d 中创建链接以实现开机启动。
3.释放子程序到 /bin/ddus-uidgen，创建服务/etc/init.d/acpidtd，并在 /etc/rc.d 和 /etc/rc.d/rc.d 中创建链接以实现开机启动。
4.修改/etc/resolv.conf, 可能是为其连接矿机服务的域名做服务。
5.修改/etc/crontab, 为自己创建定时任务，每天12点与0点开始执行。（所以你会发现第二天又启动了）

你需要做的:
1.删除 /etc/crontab 中的定时任务。
2.删除以下文件：

/bin/wipefs
/etc/init.d/wipefs
/bin/ddus-uidgen
/etc/init.d/acpidtd
/etc/rc0.d/S01wipefs
/etc/rc1.d/S01wipefs
/etc/rc2.d/S01wipefs
/etc/rc3.d/S01wipefs
/etc/rc4.d/S01wipefs
/etc/rc5.d/S01wipefs
/etc/rc6.d/S01wipefs
/etc/rc.d/rc0.d/S01wipefs
/etc/rc.d/rc1.d/S01wipefs
/etc/rc.d/rc2.d/S01wipefs
/etc/rc.d/rc3.d/S01wipefs
/etc/rc.d/rc4.d/S01wipefs
/etc/rc.d/rc5.d/S01wipefs
/etc/rc.d/rc6.d/S01wipefs
/etc/rc0.d/acpidtd
/etc/rc1.d/acpidtd
/etc/rc2.d/acpidtd
/etc/rc3.d/acpidtd
/etc/rc4.d/acpidtd
/etc/rc5.d/acpidtd
/etc/rc6.d/acpidtd
/etc/rc.d/rc0.d/acpidtd
/etc/rc.d/rc1.d/acpidtd
/etc/rc.d/rc2.d/acpidtd
/etc/rc.d/rc3.d/acpidtd
/etc/rc.d/rc4.d/acpidtd
/etc/rc.d/rc5.d/acpidtd
/etc/rc.d/rc6.d/acpidtd

检查机器漏洞，ssh权限，防火墙等，避免机器再次被攻击。