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! Welcome !11月12日 Networking etcBack to the security & virus side of things a little later, For now will touch on some Hardware fundamentals, Installation & Configuration, then onto operating systems, Installation & configurations, then maybe some networking & last some Configuration & Administration of XP / Vista (altho i HATE vista),,,,
Some of this can be pretty boreing but if you want to learn then read on! Not haveing time on my side it will be in sections! Components A typical personal computer consists of more than just the computer itself, additional equiptment called components or peripherals are connected to the computer either external to the main system case or inside it. External components are seperate devices connected to the main computers case through cables or wireless connections. External components are often called peripherals, The following table describes the typical peripherals attached to a desktop computer:
Internal components are devices which are installed inside the computers case, these components rely on the computers power supply & connect through the computers cables or electronic connectors within the case. Many times these components provide connectors or slots to the outside of the case for ease of connection for cables or card media, The following table explains some internal components:
BOIS & CMOS BIOS The BIOS (Basic Input/Output System) is a set of software instructions set on a chip on a motherboard.The BOIS instructions enable basic computer functions, such as getting input from the keyboard, mouse, serial ports etc. Without the BIOS your computer would be useles. AMD, AMI, Award, & Phoenix are some common BIOS manufactures. A motherboard manufacturer selects a BIOS, and integrates it into there design. Shadowing At startup, many computers copy the contents of BIOS into a standers memory to improve performance. The technique is called shadowing, because the contents in memory are like a shadow of those in the BIOS chip. CMOS CMOS is an area of memory that stores BOIS information. A battery fitted to the motherboard provides power to the CMOS chip so that its contents is maintained when the computer is turned off or unplugged. CMOS is a type in chip in a way. The acronym stands for complementory metal oxide semiconductor. this type of chip can maintain information without a power supply. The most common use of the CMOS chips are to store BIOS configuration data.
12月6日 Malware & BadwareWHAT IS MALWARE & BADWARE
Malware which is the same as badware is the slang word for malicious software. Malware is a generic term for software that works in such a way that it disregerds the way a user uses there pc. It is designed with the intent of disrupting or damaging a computer system. It covers all types of applications including
Spyware, Adware, Trojans, Software that steals data, pop-up ads, system monitors, browser hijackers, etc. Some malware products are completely hidden, Some products have to play two roles providing some useful actions and some totally useless. Here is a list of Malware types !
WHAT MALWARE CAN DO AND ITS WARNING SIGNS:
MALWARE INSTALLATION
SPYWARE Spyware is a specific type of malware, its a covert software program which scans or monitors activities on a computer or system, online or offline doesnt matter It transmits the gathered information to other computers or locations on the internet. This informtion is usually collected and sent to third-parties, often with malicious intent, without the user even knowing, spyware can also make changes to the users computer on wich it is installed. Among the different types of malware there are spyware is one of the worst. WHAT SPYWARE CAN DO! Spyware can collect information and send it to the attacker (all the above apply to Spyware) this can be a major problem if you use internet banking at the worse case, then can do as little as tracking cookies, mostly the actions of Spyware programs are just simply annoying like degrading the performance of the users computer by effecting the pc speed. You can check the danger or risk of a Spyware program if detected on your pc at these websites Not all Spyware is bad though to some they Spyware can be very useful Example: a users online activitie scan be monitored and used to target ads or steer the user to websites that can provide goods or service the the user wishes to see or can benifit from in some way. May i add that once permission is granted, covert software cannot be called Spyware! HOW IS SPYWARE INSTALLED There are so many ways that Spyware can be installed onto a machine most will work in stealth mode. The most common way is via an internet connection with so many computers conected to the internet its an easy threat for infection. As stated in the previous section Spyware can be installed through viruses, worms, adware, Trojan horse programs, Keyloggers, and obviously websites, some tricks to install spyware could be :
LEADING ANTI-SPYWARE TOOLS
Most of the Anti-Spyware above do a free version , Personally i use Utorrent to get the full version FREE FREE being the importance word there SPAM - PHISHING - IM's
10月23日 Yahoo messengerYahoo messenger custom status messages
I keep reading that yahoo messenger custom status messages can only be deleted when you hit 5 messages then the oldest message will be deleted ? well thats true but you can manually delete them aswell ! heres how :
This will bring up the registry editor, within the registry editor you need to go to : HKEY_CURRENT_USER\Software\Yahoo\pager\profiles\YOUR ID WILL BE HERE\Custom Msgs There you will see your messages in the right hand pane, just delete as you please, if you wish to delete all custom messages then just delete the whole reg key, it will re-new when a new custom message is typed in YM. 10月12日 Another on SQL InjectionConcept: Every time you browse the internet to look at a web site there are many things going on in the background to bring you that site. Most of the more sophisticated sites or services use DATABASES to store site content and what-not. This content is accessed by sending the web server SQL code. It is nothing more than a request for content. But it is possible to change the normal request to one of your own design. This could allow you to get different information in the database than what you would normally have gotten. What is a SQL Injection: A SQL Injection is the manipulation of SQL code by inserting crafted commands into the variables of that SQL code. This could potentially allow you to gain access to information that you would normally not have access to. How does it work: For demonstrational purposes you can think of it working like this: You have a site that allows you to enter text into an input box, like a login/password setup. When you click Submit, your information is passed to another file that processes that information (like a .php or .asp file). That file generates an line of SQL code and puts your information in it. It then sends that SQL code to the database server, which replies back with its respected information. That page then processes that new information and sends the results back to you. To do a SQL Injection, you would write specially crafted SQL code in the Input
Boxes of the site. When you submitted your malicious string to the next page, that page puts your code into the rest of the SQL statement. If you crafted your string correctly the resulting SQL logic will be modified... and hopefully still be valid. Examples of Injection: You go to a site that prompts you for a User Name and Password. You know that the User Name and Password are stored in a database. Lets also say, for simplicities sake, you have an idea of what the SQL statement looks like. Here is an example of such a code:
SELECT User.Message FROM User Where((User.Login = '$myLogin') AND ('$myPassword' = User.Password)); As you can probably tell, this code will return a "Message" if the Login equals the
correct User Name and Password equals the correct Password. $myLogin & $myPassword are the INPUT variables from the Text Boxes. So how do I do a SQL Injection on this?
First, notice that your $myLogin is getting processed first. That is where we will start. What would happened if you let your User Name equal "') AND ('"? $myLogin = ') AND (' Your new SQL String would look like this:
SELECT User.Message FROM User Where((User.Login = '') AND ('') AND ('$myPassword' = User.Password)); Ok, now you might be getting the idea how this all works now. But LOGIC tells us that
the SQL statement we just created is not valid and will create an error, plus it doesn't do us any good at all! Can you guess what we can put into $myLogin to make the SQL statement valid and logically bypass us needing a password at all!?!? Exploit:
$myLogin = root') OR (User.Login = 'root Exploited SQL Code:
SELECT User.Message FROM User Where((User.Login = 'root') OR (User.Login = 'root') AND ('$myPassword' = User.Password)); Look at what we did here. We let User.Login = root so we can get the Message that
the root user would get. We added an OR statement to logically relieve us from needing a valid $myPassword. Think of it like this:
(login = root) or ((login = anything) and (password = anything)) Since User.Login contains "root" is TRUE we get that user's Message even though the
second part of that logical argument is FALSE. SQL Injections on unknown SQL Code: Most of the time you will not be able to see the SQL code that the .php or .asp files create. Due to insecure programming habits, you might be able to get it to show you the SQL though. And obtaining partial SQL code is possible by inserting invalid strings in most cases. But no matter what, a good understanding of SQL code is needed to attempt SQL Injections. Most vulnerable code can also be exploited by a lot of trial and error. . 9月28日 Password CrackingRemote Access Password Sharing!
Windows has something called remote file sharing, which allows two different systems which are seperated to share files and printers. This is secured by a password which has to be entered each time a system requests a file.
There are two types of passwords in remote file sharing:
Both of these passwords are encrypted by passing them through the same algorithm. I will show you how a hacker would usually try to crack this password.
Go to your control panel and look for network, make sure you have the file and printer sharing enabled, then reboot for the changes to take effect.
After restarting you must go to the control again and look for security. If everything is ok there should be a page called remote access. Make sure the password is erikaand then close it.
Then open your registry editor (start/run/type (regedit)/ok) and look for admin$, which will be found in:
HKEY_LOCAL_MACHINE\Microsoft\windows\current version\Network\LanMan\ADMIN$.
(if you want to crack the password of a specific folder search for the key whos name is the same as the name of the folder and change the ADMIN$ to that name)
In the right pane of the registry editor, there is a key called parm1enc, this contains the encrypted password. You just changed the password to erika, so the parm1enc will be 70 C8 04 ED 12 hex. This is the encrypted password, so in ASCII that is pÈ.í.
So after decryption the 70h represents e, but how will we do this ? 1st of all windows converts your password to uppercase , so the e will become E, which is
45h.
So, 70h :=45h
01110000 = 70h
???????? XOR key
--------
01000101 = 45h
OK let us do this :
01110000 = 70h
00110101 XOR key = 35h (=53 decimal)
--------
01000101 = 45h
Now lets test this: Change your password to 123, now the encrypted password will be 04 8A 7E, Ok, but we only need the 04h:
00000100 = 04h
00110101 FOUND XOR key
--------
00110001 = 31h
Now,get your ASCII table and look at 31h (49 Dec) got it ? thats the ASCII charactor 1. So now you can find the 1st charactor of the
password by useing 35h as the XOR key, but every charactor of the password uses another key,which means there are 8 different keys.
Im not going to show you how to get them, try to work it out yourself by following the same procedure as above: i will give you the keys ?
1st char; 35h
2nd char; 9Ah 3rd char; 4dh 4th char; A6h 5th char; 53h 6th char; A9h 7th char; D4h 8th char; 6Ah 9月21日 HTTP Basic Authentication HTTP Basic Authentication
The most common methods of authentication used by web sites is either CGI-based or JavaScript-based. Another type of Authentication that is popular is HTTP Basic authentication. Basically password protected web sites, which pop-up a dialog box with the following text:
Cracking The HTTP Basic Authentication Passwords : This changes from server to server slightly, also it depends on how the administrator has set up the service :
GET /pagehere HTTP/1.1 Authorization: Basic rTyna2yrqw2ADGHsghis==
use MIME: :Base64; print decode_base64("rTyna2yrqw2ADGHsghis==");
9月20日 Choosing a strong passwordChoosing a strong password is always a tricky decision,
Some basic things to avoid :
And some basic things to do :
Theres a few programs out there which are good for storeing passwords Click Here for a good one.
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WitchManga发表:
23 so far - I had to stop coming here for a while cos it was starting to eat into my day! See ya.
11 月 17 日
Darren发表:
lol how many you completed ?
10 月 23 日
WitchManga发表:
No time for comments - doing jigsaws 
10 月 23 日
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