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Malicious Codes in Depth Malicious code refers to a broad category of software threats to your network and systems. Perhaps the most sophisticated types of threats to computer systems are presented by malicious codes that exploit vulnerabilities in computer systems. Any code which modifies or destroys data, steals data , allows unauthorized access Exploits or damage a system, and does something that user did not intend to do, is called malicious code. This paper will briefly introduce you to the various types of malicious code you will encounter, including Viruses, Trojan horses, Logic bombs and Worms.
Mohammad Heidari,
11/29/2004
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So Many Worms, So Little Time A thousand zombie hosts can cause a lot of damage, but the damage that can be caused by the tens of thousands that can be taken over by an Internet worm are staggering. Let's face it; the Internet is a dangerous place, and it's not getting any better. Statistics show a rapid increase in the rate of Internet-based attacks. The ability of attackers to rapidly compromise large numbers of systems poses a "real and present danger" to the overall security of the Internet.
Randy Nash,
10/07/2004
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Information Systems Security Training Virus and Worms Virus damage estimated at $55 billion in 2003 "SINGAPORE - Trend Micro Inc, the world's third-largest anti-virus software maker, said Friday that computer virus attacks cost global businesses an estimated $55 billion in damages in 2003, a sum that would rise this year. Companies lost roughly $20 billion to $30 billion in 2002 from the virus attacks, up from about $13 billion in 2001, according to various industry estimates." This was the story across thousands of news agencies desk January 2004. Out of $55 billion, how much did it cost your company? How much did it cost someone you know
Jeremy Martin,
10/05/2004
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Malicious Code An overview of the different types of malicious code including viruses, logic bombs, trojan horses, worms, and back door attacks.
By Johan Hiemstra, 09/21/2004
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Mydoom, Doomjuice, Win32/Doomjuice Mydoom.A and Mydoom.B worms have caused more than $850 million worth economic damages worldwide in just the first 24 hours. Hang Chau outlines these and other types of DDOS attacks.
Hang Chau,
09/18/2004
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Your Computer Could Be Spying On You While one could be taking all efforts to secure computers from viruses or worms but that there could be bigger threat lurking as your surfing habits are tracked and passed on to third parties for commercial purposes. Your personal information is worth money and companies are prepared to spy on you to get it. Companies want to know what your personal preferences, your buying patterns to target advertisement and marketing campaigns. Technology has enabled to correlate vast amount data harvested from unsuspecting surfers to promote products to right audience. This software that tracks surfing habits or worse harvesting your personal information like your email address, username, passwords or even credit card nos. is commonly referred to as spyware
Naushad Ramzam Ali,
08/18/2004
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The Changing Threat Landscape The statistics paint a pretty bleak picture. According to the most recent edition of Symantec’s Internet Security Threat Report, malicious code that exposes confidential data increased significantly in 2003. At the same time, Symantec documented 2,636 new software vulnerabilities last year, an average of seven per day. And threats are getting much faster. It is clear that enterprises need to find fundamentally new ways to protect themselves. What proactive defensive measures might they adopt? This article will address some of the shortcomings of traditional security technologies (i.e. signature-based intrusion detection systems cannot detect zero-day attacks), along with four new promising strategies—behavior blocking, protocol anomaly protection, virus throttling, and generic exploit blocking—and why they may hold the key to enabling enterprises to stop fast-spreading malicious threats before they penetrate the network.
By Oliver Friedrichs, 08/03/2004
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Malware Analysis for Administrators The threat of malicious software can easily be considered as the greatest threat to Internet security. Earlier, viruses were, more or less, the only form of malware. Nowadays, the threat has grown to include network-aware worms, trojans, DDoS agents, IRC Controlled bots, spyware, and so on. The infection vectors have also changed and grown and malicious agents now use techniques like email harvesting, browser exploits, operating system vulnerabilities, and P2P networks to spread. A relatively large percentage of the software that a normal internet user encounters in his online journeys is or can be malicious in some kind of way. Most of this malware is stopped by antivirus software, spyware removal tools and other similar tools. However, this protection is not always enough and there are times when a small, benign looking binary sneaks through all levels of protection and compromises user data.
By S. G. Masood, 07/13/2004
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Virus Hoaxes and the Real Dangers They Pose Jerry Bryan immediately knew there was something wrong at his church. He knew it the second he opened up the email from the pastor. As a highly respected member of his church and a known technophile, Jerry was often consulted by the pastor concerning technical matters. In this case, however, the pastor was passing along a serious warning.
By Scott Granneman, 07/13/2004
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Protecting Insecure Programs This document will examine several strategies to protect programs from malicious input, so that they will, in the worst case, abort processing rather than cause malicious code to be executed.
By Shawn Instenes, 07/08/2004
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