User Account Control – Vista
Published By rsivanandan On Tuesday, March 27th 2007. Under Vista
During the first looks, the most annoying thing that I felt with Vista is the new UAC feature! Yeah, the traditional 'Do you really want to go nuts?' thingy.
Even if you're in administrators group, Vista pops-up a confirmation window on whether you want to do it or not for
actions. Which ... Continue Reading
Tini – Backdoor
Published By rsivanandan On Sunday, March 25th 2007. Under Attacks/Exploits
If you understand the attacks, then you would also understand the difficulty of placing a backdoor on some machine/server.
Lets meet 'tini' ; as the name is, it is tiny (only 3kb in size) and can run without dragging attention.
So here is the behavior, Tini is an executable which listens on ... Continue Reading
Finally Vista on AMD Turion
Published By rsivanandan On Sunday, March 25th 2007. Under Life in general
I got myself another laptop; Compaq Presario V6211 AU with Vista on it.
So this would be my first hands on on Windows Vista - Looks are cool but it eats memory like hell. I don't know,
I do have 1 Gb of RAM though, still not enough... The wide-screen laptop is cool and had a gist of HDTV
Gotta do more research.... ... Continue Reading
So much of an Appraisal!
Published By rsivanandan On Sunday, March 25th 2007. Under Life in general
There is this advertisement in Star Network by Times Job Ltd. Where-in a cool dude walks in big and tall, makes his marks on everything he does, on each such event he is elevated! Then finally the paycheck comes, he shrinks like a baloon... with a caption of 'Salary makes ... Continue Reading
Smoke 2.0
Published By rsivanandan On Monday, March 19th 2007. Under Life in general
Now that I'm a smoker, I don't understand if I smoke for the smoke or the Nicotine and since Nicotine patches that I tried didn't work, I'm going to assume that smoke for smoke is a factor as well :-)
Well, seems like there are Cigarettes now in Italy which doesn't ... Continue Reading
Ownership vs Availability
Published By rsivanandan On Saturday, March 17th 2007. Under Tech in general
Is Application availability better than Ownership of the application ? Good Question. With the Web 2.0 changes, now google is providing free online document editing solutions. So want to create a word document/save as PDF or RTF ? or create a spreadsheet for your personal finance?
No hazzle using applications for ... Continue Reading
All Whois…
Published By rsivanandan On Saturday, March 17th 2007. Under Tools For Life
Domain Registration Lookup information - on information such as who it is registered to and other details needs a Whois tool. Every network professional do know this one!
Now, all around the world there are so many REGISTRARS and you need different servers
to find the information. First of all that could ... Continue Reading
Bloody Traffic…
Published By rsivanandan On Saturday, March 17th 2007. Under Life in general
Excuse my words but I have to say it and I'm sure this one has been on every Bangalorian's blog discussed over and over again but I have my part to say.
The traffic is so horrible, going to a place takes 15 minutes and come back in the evening
at 7.00, ... Continue Reading
SANS-504 DayVI…
Published By rsivanandan On Saturday, March 17th 2007. Under Tech in general
Last day of the training, winded with RootKits and Revealers...
So altogether for the money that is paid in India for SANS 504 course if worth spending on! ... Continue Reading
NTFS Alternate Data Stream (ADS)
Published By rsivanandan On Friday, March 16th 2007. Under Tools For Life
Ever heard about this ? I'm sure some of the network admins have gone haywire on this one!
Well, windows NTFS has a feature called Alternate Data Stream. In simple words, if I have
a file that I want to hide, how would I do it?
Well, hackers do it pretty well :-)
Scenario:
1. Hacker wants to use somebody else's machine for storing his huge files. Now if he access it
and store it in there, the owner at some point would delete it for sure. Without Owner even
noticing that, how do they do it? -> You have alternate data stream as your answer :-)
So say there is a text file (Owner's file) called Personal.txt of size 32 kb and the huge file that needs to be hidden is Movie.mov, then this is how you do it on an NTFS partition;
type Movie.mov > Personal.txt:Movie.mov
Then delete the file Movie.mov; Done
If the owner/administrator looks at that file, it will show the file size as 32kb itself.
Now, how does the hacker take it when he wants? Say he wants to play that file, then;
start Personal.txt:Movie.mov
Done, his movie file will be launched.
How is this done? Well, the data is stored in streams and you basically redirect the 'wrong'
stream to the 'Personal.txt'....
There were pandamonium created by this some time back on ISP's servers or so I heard.
How do you detect it as a Network administrator ? Because you have 1 file of 32kb size and
your whole disk of 10 GB is full :-(
Even the 'dir' command will show only the parent file's size.
There is a command line tool called 'LADS' which will list it!
Not just that, Microsoft realized it and now has a provision to do it; { Read } ... Continue Reading
