Worm

Dorkbot romance with Latin America

The information-stealing, botnet-building worm known as Dorkbot (Win32/Dorkbot) is one of the most active threats in Latin America. Ever since we started to investigate this worm, we have been able to identify different dissemination campaigns, the ultimate aim of which is stealing sensitive information such as login names and passwords from its victims. Most of

ACAD/Medre.A Technical Analysis

For the story behind the suspected industrial espionage, where ACAD/Medre.A was used, refer to Righard Zwienenberg's blog post. For technical details from analysing the worm's source code, read on. ACAD/Medre.A is a worm written in AutoLISP, a dialect of the LISP programming language used in AutoCAD. Whilst we classify it as a worm, due to

ACAD/Medre.A 10000's of AutoCAD files leaked in suspected industrial espionage

The malware news today is all about new targeted, high-tech, military grade malicious code such as Stuxnet, Duqu and Flamer that have grabbed headlines. So imagine our surprise when an AutoCAD worm, written in AutoLISP, the scripting language that AutoCAD uses, suddenly showed a big spike in one country on ESET’s LiveGrid® two months ago,

Facebook Worm: ZeuS is not your (FB) Friend

CSIS have reported a worm that really does spread through Facebook…but it’s unsafe to use VirusTotal to compare product detection.

Made in the Czech Republic: a PHP Autorun worm

Recently, a new data-stealing worm caught our attention. The reason why it stands out from many similar amateur creations is that its author is most probably Czech, as the text strings, variable and function names used by the malware suggest. The Czech text above is displayed by the worm inside a console window and translates

1000 days of Conficker

Nearly three years old, the Conficker worm continues to pose a threat to PCs. Aryeh Goretsky wants to know why this is, and what can be done about it.

The more things change, the more they stay the same

It's something of a truism, that 'old viruses never die', and that certainly seems to be the case for some of the older, more widespread, email worms. In this interview (http://www.signonsandiego.com/uniontrib/20041129/news_lz1b29five.html) back in 2004, I talked about an email worm called "Win32/Zafi.b" which, at the time, had recently been spreading on a global scale. However,

Real War – The Next Cyber Frontier

Cyber Security pundits have been keenly watching the development of nascent state targeted attacks such as the Stuxnet worm with interest for some time and warning of the possible implications, but now it’s official. According to The Wall Street Journal, “The Pentagon’s first formal cyber strategy, unclassified portions of which are expected to become public

What are Heuristics?

It is generally well-understood that antimalware programs—the software which detects computer viruses, worms, trojan horses and other threats to your system—work by scanning files using signatures they already have. A signature could be as simple as a string[i] (like using the "find" command in your word processor to locate a particular piece of text) or as

IM to Spread Malware: the Butterfly Effect

This weekend, an unnamed worm forced Microsoft to temporarily suspend active links  in Live Messenger 2009, in order to prevent the aggressive worm from spreading further. This is quite a surprising measure, because worms spreading through Instant Messaging (IM) such as Skype, Yahoo! Messenger and Microsoft Live Messenger are not new at all! For example,

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