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.