Social Icons

Friday, October 08, 2010

RISK MANAGEMENT : Beware while u update with Patches

1. A zero-day exploit as discussed at an earlier post in this blog .....Some thing more to it...

2. A good extract straight lift from Infosecurity-magazine.com

"For a vendor, developing the update is not the part that takes time – testing is. We have more than 600 million downloads when we publish an update. If we “just” break 10% of the systems the update is installed, it would be a huge denial of service. So testing is the name of the game. How well is an unofficial patch tested?Often the vendor publishes workarounds (at least we do). This should be part of your risk mitigation strategy. Would the workaround be acceptable to buy you time?

How far do you trust the author of the unofficial update? How big is the risk that the update comes with pre-installed malware? The question immediately comes up: Why should we trust a vendor? Well, you bought or downloaded the software at the first hand – so, you decided to trust the vendor at the beginning.

What do you do once the vendor releases an update? Can you de-install the unofficial update?

Basically, it is a risk management decision, which should include at least the questions I raised above. Do not just run for the unofficial update – to me it should be really the last resort, if even!"

3. A good site to follow : Check out http://www.infosecurity-magazine.com

ALL izz WELL!!!!!inside this- Check out FREE STUDIO

My routine surfing on net invariably includes few video downloads,uploading videos to you tube and other sites sometimes,convert various available audi video formats to compatible formats with the help of so many convertors available accross,fiddling with audio formats,burning CDs & DVDs with videos and data files....in a typical scenario all this would be done on arange of softwares of different companies.....came across this absoutely free software ie FREE STUDIO...one single window solution to evri task as mentioned above and much more....and yes it is absolutely free...try it must...

Security Enabled Hardware :INTEL - McAfee Merger

1.      “Security is more effective when enabled in hardware” provisions for something in the pipe known as Security Enabled Hardware.Howzzz that???? There has been a lot of speculation about the rationale behind Intel's recent acquisition of McAfee....well if u r not aware of this Intel’s proposed $7.7billion purchase of McAfee that comes as the most magnanimous takeover deal in the chip giant’s 40-odd-year history....u better be now....although there is no product roadmap to speak of yet.




2.       McAfee technology deeply desegregated into Intel products would mean adding security functionality into Intel’s chip. But would this pushing security into silicon be able to negate the increasingly sophisticated and dynamic threats from cyber crime? Though components of security could be significantly enhanced if chips were designed integrating this way. What about updates,patches etc


3.       Security in the 21st century is about being dynamic, responding to the ever-changing threat landscape in real-time, which you can do with a cloud-based system powered by a network of threat intelligence sensors and reputation-based technologies that stop threats before they even hit the device. Pushing security down to the hardware level makes it very difficult to be reactive, agile or fundamentally secure.

Thursday, October 07, 2010

CLEANERS & FOOTPRINTS

1. Off late I have been experimenting with few software's which claim to do a 100% cleansing action of removing every browsing marks and history of any kind on your computer that u use for work and surfing.These incl the following :

2. Among these I have no doubts of who is leading?....CyberScrub Privacy Suite v 5.1 & PC Tools Privacy Guardian v4.5.Though CyberScrub Privacy Suite v 5.1 does leave Chrome traces and does't have Chrome included in its list of browsers......It does a pretty neat job by giving options of wiping that include Navy Staff Office Publication (NAVSO PUB) 5239,Russian Gost,Brouce Schneier algorith and many others with options of selecting passes......on the other side ie PC Tools Privacy Guardian v4.5...includes chrome as a option to be selected with similar wiping algorith options.....

3. Try you must.......all of them to know the real difference or simply follow the recommendations......

Sunday, September 19, 2010

Browser Forensics - Not Simple

1.      Just read one book by Peter C.Hewitt on Browser Forensics.An eye opener for anyone....the amount of info that stands compromised whilst using any browser is astonishing.....

2.      Now in a normal routine maintenance when I used to clear my browser History,cookies and cache....when I used to remove unnecessary files using utilities like Glary Utilities,Cc Cleaner and Tuneup utilities....i used to think that there r no traces left...before I was introduced to Mandiant's Webhistory, Pasco, Galleta and IE Passview.

3.      I checked up first with Mandiant's Webhistory....an 8 MB file...simple to install,,,free.Web Historian is a program that allows an investigator to collect, display and analyze web history data using Mandiant Intelligent Response (MIR) technology. It seeks to provide a customizable yet simplistic interface to view and navigate voluminous amounts of web history data. Perhaps the most powerful feature is the ability to correlate and provide multiple views of the data (including graphical and timeline) through the Analyzer and Web Profiler tool, in the hopes that investigators can come to well-informed conclusions about the data quickly.

4.       So after I cleaned up my PC using every utility....and scanned the PC with this software....the result was like nothing has been removed...all what I had accessed in last few days stands out in a compiled tabulated form ready to be saved as a Excel file for record.So what exactly allows this info extraction in spite of assurances from utilities available.The most recent versions of Windows store information about the pages viewed by the browser in a file called index.dat. One of the index.dats, in turn, contains information pointing to other files used in the browsing session. Windows has 3 types of index.dat files, for the cache, history and cookie files, respectively.Obviously, viewing all 3 types will give us the best understanding of what browsing took place. So....its not simply erasing ur history that could save you at some time......there is much much more ........

Saturday, September 18, 2010

Root Kits : Hidden Undetected Threats

1. Malwares,trojans,adwares,spywares,virus,wormwares etc etc....protection vide Internet security editions by so many OEMs...and now rootkits(its not actually a recent development....)...has been in the threat making for about 10-12 years..but now the term is getting serious....so what actually are rootkits?


2. Rootkit is the term given to a group of utilities that hackers can misrepresent to keep access into a computer system once they have hacked into it. It gives them admission rights to find out usernames and passwords, allow strike against remote systems, remain hidden by erasing history from the system logs, and overabundance of various surreptitious tools.Rootkit is a combination of two words, “root” and “kit”. Root means supreme & Kit means a group of programs or utilities providing access to a user to retain a constant root-level contact to a terminal. The presence of rootkit ideally remains untraceable.

3. So more simply,they are a set of programs that can hide not only themselves but also other viruses, spyware, keyloggers and network traffic from normal antivirus and spyware removal software! Yes, a rootkit can infect your computer and take full control of it! You look inside a folder which contains rootkit files but you will see nothing. Why? Because the rootkit has told it to tell the user there are no files here. That is why, they are so dangerous and hard to detect......

4. BlackLight,RKDetector 2.0,RootkitBuster 1.6,RootkitRevealer 1.71 & Rootkit Unhooker 3.0A are few of the rootkit removal tools available...google for further details

ZERO DAY EXPLOIT : ???

1. While reading an article on Browser Forensics,came across this term "0-day" exploit....whats it all about?

2. A zero day exploit is a malevolent computer attack that takes capitalizes on a security hole before the vulnerability is known. This means the security issue is made known the same day as the computer attack is made. In other words, the software developer has zero days to prepare for the security breach and must work as quickly as possible to develop a patch or update that fixes the problem.This occurs on or before the first or "zeroth" day of developer awareness, meaning the developer has not had any opportunity to distribute a security fix to users of the software.

3. Zero day exploits may involve viruses, trojan horses, worms or other malicious code that can be run within a software program. While most programs do not allow unauthorized code to be executed, hackers can sometimes create files that will cause a program to perform functions unintended by the developer. Programs like Web browsers and media players are often targeted by hackers because they can receive files from the Internet and have access to system functions.While most zero day exploits may not cause serious damage to your system, some may be able to corrupt or delete files. Because the security hole is made known the same day the attack is released, zero day exploits are difficult to prevent, even if you have antivirus software installed on your computer. Therefore, it is always good to keep a backup of your data in a safe place so that no hacker attack can cause you to lose your data.

Thursday, September 16, 2010

Cyber Warfare : It has started

1. I have been recently digging deep into reading "Tracking Ghostnet" & "Shadows in the cloud".Crisp,to the point,full of information,a must read for all IT Security savvy personnels.This is where I got to read about "The May 2007 DoS Attacks on ESTONIA".Brief about this Estonia Case below :

2. Subject attacks on Estonia capitallyy known as Estonian Cyberwar or Web War 1, refers to a series of cyber aggresses that began April 27, 2007 and deluged websites of Estonian organizations, including Estonian parliament, banks, ministries, newspapers and broadcasters, amid the country's row with Russia on some relocation issue of the Bronze Soldier of Tallinn.Most of the attacks that had any influence on the general public were distributed denial of service type attacks ranging from single individuals using various low-tech methods like ping floods to expensive rentals of botnets usually used for spam distribution. Spamming of bigger news portals commentaries and defacements including that of the Estonian Reform Party website also occurred.

3. Subsequent to the incident, a criminal investigation was conducted and On 24 January 2008, Dmitri Galushkevich, a student living in Tallinn, was found guilty of participating in the attacks. He was fined 17,500 kroons (approximately US$1,640) for attacking the website of the Estonian Reform Party.So surprisingly,after so much of damge had been done,so much of ministeries websites were defaced,the followup resulted in a single conviction of a Russian Living in ESTONIA.Imagine....one single person from Russia was found responsible for the cyber havoc that Estonia had to face.

4. The net and the cyber world is still in the stage of nascency and there is lots coming ahead for sure in future...like the events surfaced in the movie "Live Free or Die Hard".Every one across the globe today has realized the potential of Cyber warfare.....and the power is immense....anyone who is clear....stands as ONE MAN ARMY.....as cited through one eg above.

Wednesday, September 15, 2010

ORDER OF VOLATILITY OF DIGITAL EVIDENCE

1. Not all information-based evidence is the same! Evidence can be organized into an “order of volatility” meaning how long it will stick around for you to collect until it automatically is lost.

2. Dan Farmer & Wietse Venema created the below table of evidence volatility, which is commonly referenced by forensic professionals. For example, information stored on a CD-R or some optical storage media can last for about 10-100 years depending on the brand used. Information stored in a computer’s main memory, by contrast, will last for only tens of nanoseconds before it is wiped out by the computer’s normal processing.

TYPE OF DATA

LIFESPAN

Registers, peripheral memory, caches, etc.

Nanoseconds or less

Main memory

Ten nanoseconds

Network state

Milliseconds

Running processes

Seconds

Disk

Minutes

Floppies, backup media, etc.

Years

CD-ROMs, printouts, etc.

Tens of years

3. Very critical from forensics point of view.....most people would want to turn a computer off (or at the very least unplug it from the network) when they realize an incident has occurred. However, as noted in the chart above, one will lose evidence in main memory and “network state” information (which other systems the computer is connected with and what information they are exchanging) with such an approach. Even shutting down a computer the “normal” way (Start / Turn Off Computer / Turn Off in Windows XP) can delete evidence, as Windows performs a number of housekeeping tasks in the shutdown process, such as closing opened files and clearing out the temporary disk cache.

4. Thanks Peter C. Hewitt (Read from Browser Forensics).

Powered By Blogger