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标签归档:mysql勒索
read_me_recover_tn勒索恢复
最近有客户被MySQL删库勒索,现象如下:
1. 删除掉以前的库,并创建一个同名库,并且会创建一个read_me_recover_tn库,类似下图:
2. 在read_me_recover_tn库中有一个readme表,每个被删除然后创建的库里面也有一个readme表
3. 每个readme表内容类似信息类似:
mysql> desc readme -> ; +-----------------+------+------+-----+---------+-------+ | Field | Type | Null | Key | Default | Extra | +-----------------+------+------+-----+---------+-------+ | id | int | NO | PRI | NULL | | | Message | text | YES | | NULL | | | Bitcoin_Address | text | YES | | NULL | | +-----------------+------+------+-----+---------+-------+ 3 rows in set (0.01 sec) mysql> select * from readme\G; *************************** 1. row *************************** id: 1 Message: I have backed up all your databases. To recover them you must pay 0.008 BTC (Bitcoin) to this address: 15f9vdGBeT1NCMp6z9NxrQEEUxnYqRPvyC . Backup List: xxxx_db, xxxx_db_test. After your payment email me at dbrestore3195@onionmail.org with your server IP (xx.xx.xx.xx) and transaction ID and you will get a download link to your backup. Emails without transaction ID and server IP will be ignored. Bitcoin_Address: 15f9vdGBeT1NCMp6z9NxrQEEUxnYqRPvyC 1 row in set (0.00 sec)
这类勒索和我以前介绍相关文章类似:
RECOVER_YOUR_DATA勒索恢复
A____Z____RECOVER____DATA勒索恢复
处理办法也完全相同:
建议先对系统进行镜像或者快照,然后按照先os层面恢复,在block级别恢复的方法处理,如果无法自行解决,可以联系我们进行技术支持,最大限度抢救和数据,减少损失
电话/微信:17813235971 Q Q:107644445 E-Mail:dba@xifenfei.com
另外建议加强系统和mysql安全加固,数据库尽量不要暴露在公网上
A____Z____RECOVER____DATA勒索恢复
有客户MySQL数据库被黑,业务库中表被删除,并创建A____Z____RECOVER____DATA库,里面有一张readme表,内容为:
mysql> select * from readme \G; *************************** 1. row *************************** zh_content: 请尽快与我们取得联系,否则我们将会公布你的数据库信息在网络中,联系邮件:datacenterback@keemail.me en_content: 请尽快与我们取得联系,否则我们将会公布你的数据库信息在网络中,联系邮件:datacenterback@keemail.me email: datacenterback@keemail.me 1 row in set (0.00 sec)
对于这种情况,本质就是mysql drop 库或者drop表级别的恢复,通过反删除软件恢复,可惜恢复效果很差(底层发生了大量的覆盖)
对于这种情况,只能采用底层block级别恢复,通过底层扫描分析
并解析扫描结果恢复需要数据
对于类似这种A____Z____RECOVER____DATA勒索恢复,建议先对系统进行镜像或者快照,然后按照先os层面恢复,在block级别恢复的方法处理,如果无法自行解决,可以联系我们进行技术支持,最大限度抢救和数据,减少损失
电话/微信:17813235971 Q Q:107644445 E-Mail:dba@xifenfei.com
另外建议加强系统和mysql安全加固,数据库尽量不要暴露在公网上
MySQL勒索恢复
最近遇到几个mysql数据库被黑客删除库,并且留下比特币勒索信息在每个库的WARNING表中
mysql> desc WARNING -> ; +-----------------+----------+------+-----+---------+-------+ | Field | Type | Null | Key | Default | Extra | +-----------------+----------+------+-----+---------+-------+ | id | int(11) | YES | | NULL | | | warning | longtext | YES | | NULL | | | Bitcoin_Address | longtext | YES | | NULL | | | Email | longtext | YES | | NULL | | +-----------------+----------+------+-----+---------+-------+ 4 rows in set (0.00 sec) mysql> select * from WARNING; +------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+------------------------------------+------------------+ | id | warning | Bitcoin_Address | Email | +------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+------------------------------------+------------------+ | 1 | To recover your lost Database and avoid leaking it: Send us 0.06 Bitcoin (BTC) to our Bitcoin address 1BLYhUDmnmVPVjcTWgc6gFT6DCYwbVieUD and contact us by Email with your Server IP or Domain name and a Proof of Payment. If you are unsure if we have your data, contact us and we will send you a proof. Your Database is downloaded and backed up on our servers. Backups that we have right now: xxxx,xxxxxx,xxxxxxxx,xxxxxxx . If we dont receive your payment in the next 10 Days, we will make your database public or use them otherwise. | 1BLYhUDmnmVPVjcTWgc6gFT6DCYwbVieUD | contact@sqldb.to | +------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+------------------------------------+------------------+ 1 row in set (0.00 sec)
大概的意思就是:我们已经把你的数据库备份,您交给我们0.06个比特币,我们把数据给你,如果10天之内我们没有收到款,即将把数据库给公开或者作为其他用途.根据我们以往接触的朋友经验,付款之后数据库也不会给你(很可能黑客根本就没有备份数据库,只是删除了数据库然后勒索比特币.
对于这类情况,通过分析,确认黑客是删除了数据库,在没有覆盖的情况下,我们可以对其数据进行恢复,处理类似:MySQL drop database恢复(恢复方法同样适用MySQL drop table,delete,truncate table)最大限度缓解因为数据库被破坏带来的损失.
如果您也遭遇到该问题,请保护现场,不要导入备份数据库,不要对数据所在分区进行写操作(现场保护的越好,数据恢复效果越好),对相关磁盘进行镜像,防止二次破坏.我们可以提供专业的mysql恢复服务,为您减少损失.