Jun 22 2009

Access to computers on sale

Category: CybercrimeDISC @ 3:09 pm

Cybercrime

According to SF chronicle article by Deborah Gage (June 17, 2009, c1) a troublesome online network for buying and selling access to infected computers has been discovered by security researchers. The name of the group is GoldenCashWorld which sell access to online infected computers such as web server, mail server, database server etc. Infected computers are utilized to send spam, SQL injections, XSS attacks, buffer overflow attacks and spread viruses and worms.

According to the article this underground network already have access to more than 100,000 websites and 40% of these compromised computers reside in the United States. This is a growing threat to individuals and business assets in United States which should be taken seriously by National Cyber security Divisions.
GoldenCashWorld is a global underground ring which requires an international law to crack this nut.

Online Secure Remote Backup solution
Online crime ring detected
Guide to Computer Forensics and Investigations

Cyber Crime Growing Global Threat
httpv://www.youtube.com/watch?v=ZHmFiueQm5A


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Tags: buffer overflow, cyber crime, GoldenCashWorld, NCD, online infected computer, San Francisco Chronicle, Spam, SQL injection, xss


Sep 04 2008

Web 2.0 and more data

Category: Information Security,Web 2.0DISC @ 5:52 pm

According to the Identity Theft Resource Center of San Diego, “the data breaches are on the rise in 2008” and with more data breaches so are the impact and amount of losses. Web 2.0 is next phase of internet creation, where huge social networks are built and citizens of the network enjoy the interactive and conversational approach of the new web frontier. Does the web 2.0 introduce new threats which can be exploited by cyber criminals?

To aid a social communication, users are required to input personal profile including birth date and residence addresses into these social networks to participate, which happens to provide a target rich environment for cyber criminals. These days new attacks are already taking advantage of personal information, some of which is retrieved from social network sites. If the account is hacked/breached from one of these social network sites, the impersonator can damage the (personal and professional) reputation by modifying the profile or changing/inserting the contents or comments.

Cross site scripting is one of the major threat facing Web 2.0, below is an example of XSS.

“In an incident reported in early December 2006 by Websense, hackers compromised the MySpace social networking site and infected hundreds of user profiles with a worm. This malicious code exploited a known vulnerability to replace the legitimate links on the user profiles with links to a phishing site, where victims were asked to submit their username and password. In addition, according to Websense, the worm embedded infected video in victims’ user profiles.”

AJAX is one of the main programming languages used to develop Web 2.0.

“A traditional Web site is like a house with no windows and just a front door. An AJAX Web site is like a house with a ton of windows and a sliding door. You can put the biggest locks on your front and back doors, but I can still get in through a window.”

What if you happen to be a peace activist or a whistle blower in your company? Then perhaps Uncle Sam or your employer wants to settle scores with you for some reason. The question is who is monitoring them or for that matter stopping them from getting into your account to steal or modify data to damage your reputation or career? The point is, besides all the functional benefits, web 2.0 comes with new threats which we need to be aware of. Without knowing these risks we can’t manage or mitigate them to a point which is acceptable to the society at large.

Web 2.0 contents are mostly interactive or dynamic in nature. The tools which were used to defend static contents might not be feasible for dynamic web 2.0 contents. Non-repudiation, validating the source and real time verification of the contents might be necessary to stay on top of the dynamic nature of web 2.0 threats.

Web 2.0 – Opportunity 2.0 or Threat 2.0?

How freely available online infomation on Web 2.0 was utilized to break into online banking account

Web 2.0 … The Machine is Us/ing Us

httpv://www.youtube.com/watch?v=6gmP4nk0EOE


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Tags: ajax, cross site scripting, cyber criminals, data breaches, identity theaft, mitigate, non-repudiation, phishing, Web 2.0, web 2.0 threats, websense, xss