Wednesday, 27 March 2013

Is ur computer secure?


Just think before opening any file  bcoz there are many techniques by which ur personal information is taken away ,one of which is embedding viruses( trojans,worms,keyloggers.............)  in exe, vbs , bat files ,auto run files ,games  etc  .The actual file seems to be useful as viruses in these file become active after a specific time of installation  or on the updation of file (depends on how the hacker programmed the file)
------------>Do not open the files which have extensions as if they were jpeg, gif ,ppt , txt etc   but not the real extension names  such as  imag1.jpeg.exe ,image.gif.exe ,test.txt.exe ,test.txt.vbs ,test.txt.bat , key.ppt.bat   and the list is endless. so do not open the files which have double extensions.Also note that many links that come in the social networking sites such  yup she did it in the public , how dare she is .......................  are all of this type so be careful in opening these type of files

For more visit http://computersciencedora.blogspot.in/


Sunday, 24 March 2013

setting up the passwords for various websites


Be cautious while setting up the passwords for various websites.It has been found that most of the websites steal user information by prompting the user to signup a new account to access various services .It sounds good , but the user is at risk if he set the passwords which were already used for signup in net banking sites , Facebook , gmail to name a few.......some other websites make the users to believe that they can earn money by signing up a new account and sharing their links for their advertisement .No doubt that money gets incremented in their signed up account (remember that it is after all a human written program that makes the money incremented in ur account) and but ur account gets automatically deleted from most of these sites after a scheduled interval of time.(eg.. www.earnyouth.com)
Most of the fake websites like those of above mentioned type also try to use the passwords you used for their website signup in accessing other websites accounts like net banking sites , facebook, gmail ........and u are at utmost risk

so have a habit of setting up different passwords for different sites to be secure


Tuesday, 5 March 2013

Are u allowing ur browsers to remember the passwords?


If u are allowing to remember the passwords , then make  sure that u are not giving ur system to anonymous persons.This is due to the fact that

it displays ur stored password  when the person enters the first few letters of ur email id
when he changed  part of  the  HTMLcode of the page as follows:

right clicking the password field and then selecting inspect element and changing the type=”password”  to type=”text”  in the below code
<input type="password" name="Passwd" id="Passwd">

For better security as in mozilla firefox ,set the master password  if u are allowing the firefox to remember the passwords unless which it shows the passwords stored when one clicks on show passwords……………..

Saturday, 2 March 2013

Is ur antivirus monitoring ur pc properly???


To check I have written a simple harmless program that ejects ur cd-rom drive  if u close it .
it can be downloaded from https://docs.google.com/file/d/0B_IS9V1cHAc_eVdLN2ZLdnBRT0E/edit?usp=sharing
open and extract the file
If ur anti virus detects that it is a virus and prompt u to delete the file , then ur pc 's antivirus is monitoring properly  otherwise change/update ur antivirus

you can stop the action of ejection of cd drive when you close it
 by  Opening
 ----)task manager or pressing     ctrl+alt+del
----)click on process tab  or  details tab (in windows 8)
----)select wscript.exe
----)click on end process.

----------------->Deletion of the downloaded file doesnot stop the action of ejection.For more visit  http://hackingprotectdevdora.blogspot.in

For more visit  www.facebook.com/csedevgroup

Tuesday, 26 February 2013

To reduce online attacks?

Which to choose WEP(wired equivalent privacy) , WAP(Wi-Fi Protected Access) in wireless connectivity ?
WAP is better than WEP which is a safer RC4 implementation—for data encryption


Tips to protect wireless networks and online attacks
->donot broadcast SSID (SSID is the network name .It reduces the chances of hacking,but newly emerged technologies like passive war driving can find your SSID even though it is a hidden network)
->choose strong passwords so that it takes more time for hackers to crack as a result of which they loose interest in cracking ur password
->While online transaction,see that there is https:// before the webaddress  

why strong password?

Why to inc lude uppercase ,lowercase,numbers,special characters,multilingual words in setting ur passwords?
This is due to the fact that at present there are many techniques like brutual force attack,wardriving,rainbow table attack, dictionary attack...the list is endless.These all softwares try to crack passwordss by various permutation techniques,first these softwares try simple names......then....complex names...the more are the special characters,numbers,alphabets used the more is the time taken for the softwares to crack the password....thus hackers loose interest in crack the passwords that takes more time to crack

Monday, 25 February 2013

sql injection

Sql injection is outdated, but however do check if u have a website based on database query is a victim of sql injection

A simple example of a SQL injection attack is to use the single quotation mark as part of
an input value to a Web page.Database Server ignores everything after "--" or "#" because these characters are the single line comment sequence.Another example of a SQL injection attack is making the condition true by giving the identical value to a web page.

These values can be inserted into a login as follows:
o Login: 1' or '1'='1 and Password= 1' or '1'='1
o Login: 1' or '1'='1';--
o Login: admin’--
o Login: admin'#

Measures to prevent sql injection:
o Input Validation on the SQL injection
o Use Javascripts that allow only known good input from the Web server to the Database server.