Detecting SSH tunnels

Tuesday, July 1st, 2008

Italian researchers have published a paper on the Detection of Encrypted Tunnels across Network Boundaries. I came across it in a google search because I’ve been thinking of writing a program which does something similar. It doesn’t seem like anyone else has picked up on this research yet so I ...

Vishing Attacks Increasing

Friday, June 13th, 2008

In recent months, Web site compromises have become the most prevalent problem that threatens Internet users from all over. While this trend continues to dominate today’s security issues, let’s not forget about other threats that, although may be not as massive as these attacks, have equally serious ramifications against the ...

browserrecon - Passive Browser Fingerprinting

Wednesday, May 14th, 2008

Most of todays tools for fingerprinting are focusing on server-side services. Well-known and widely-accepted implementations of such utilities are available for http web services, smtp mail server, ftp servers and even telnet daemons. Of course, many attack scenarios are focusing on server-side attacks. Client-based attacks, especially targeting web clients, are becoming ...

Analysis of a Win32.Delf Variant

Friday, April 4th, 2008

We have been noticing quite a few malware samples having references to or communicating with Google's SMTP servers. This post dissects one of these samples and in the process attempts to illustrate to the reader some reversing techniques and information gathering techniques, while explaining the behavior and impact of this ...

F-Secure predicts million viruses by end of 2008

Wednesday, April 2nd, 2008

The amount of new malware has never been higher. Our labs are receiving an average of 25,000 malware samples every day, seven days a week. If this trend continues, the total number of viruses and Trojans will pass the one million mark by the end of 2008. While there are more ...

Inguma 0.0.7.2 Released for Download - Penetration Testing Toolkit

Monday, March 17th, 2008

For those that don’t know, Inguma is an open source penetration testing and vulnerability research toolkit written completely in Python. The environment is mainly oriented to attack Oracle related systems but, anyway, it can be used against any other kind of systems. It’s becoming a mature and useful package! I’m glad ...

Zombie PCs spew out 80% of spam

Saturday, March 8th, 2008

Four-fifths of spam now emanates from computers contaminated with Trojan horse infections, according to a study by network management firm Sandvine out this week. Trojans and worms with backdoor components such as Migmaf and SoBig have turned infected Windows PCs into drones in vast networks of compromised zombie PCs. Sandvine reckons ...

How Good Is the Windows Server 2003 Basic Firewall?

Saturday, March 8th, 2008

I recently spent a few weeks testing Windows Server 2003 by using the Microsoft Small Business Server (SBS) 2003 release candidate (RC). One of my goals was to evaluate the efficacy of the RRAS firewall. The basic firewall is a new component in Windows 2003 that uses an enhanced version ...

End of the road for SMTP?

Saturday, March 8th, 2008

Developed when the Internet was used almost exclusively by academics, the Simple Mail Transfer Protocol, or SMTP, assumes that you are who you say you are. SMTP makes that assumption because it doesn't suspect that you're sending a Trojan horse virus, that you're making fraudulent pleas for money from the relations ...