VB Blog

Paper: How It Works: Steganography Hides Malware in Image Files

Posted by Martijn Grooten on Apr 28, 2016

A new paper by CYREN researcher Lordian Mosuela takes a close look at Gatak, or Stegoloader, a piece of malware that was discovered last year and that is controlled via malicious code embedded in a PNG image, a technique known as steganography.

Posted by Martijn Grooten on Apr 26, 2016

The current ransomware plague is one of the worst threats the Internet has seen and it is unlikely to go away any time soon. But telling people to never pay the ransom is unhelpful advice.

Posted by Martijn Grooten on Apr 22, 2016

In his VB2015 paper, Martin Korman presented his 'VolatilyBot' tool, which extracts malicious code from packed binaries, leveraging the functionality of the Volatility Framework.

Posted by Martijn Grooten on Apr 21, 2016

We have announced 37 papers (and four reserve papers) that will be presented at VB2016 in Denver, Colorado, USA in October. Registration for the conference has opened; make sure you register before 1 July to benefit from a 10% early bird discount.

Posted by Martijn Grooten on Apr 15, 2016

The people behind the MalwareHunterTeam have released a tool that helps victims of ransomware identify which of more than 50 families has infected their system, something which could help them find a tool to decrypt their files.

Posted by Martijn Grooten on Apr 13, 2016

The PR campaign around the Badlock vulnerability backfired when it turned out that the vulnerability wasn't as serious as had been suggested. But naming vulnerabilities can actually be helpful and certainly shouldn't hurt.

Posted by Helen Martin on Apr 7, 2016

The Virus Bulletin Virus Prevalence Table, which ran from 1992 until 2013, gave users a regular snapshot of what was really going on in the virus (and later malware) world, recording the number of incidents of each virus reported to VB in the preceding month. In August 2000, Denis Zenkin, a self-confessed virus prevalence table junkie, shared his findings following a study of the virus prevalence tables over the preceding few years, allowing him to determine the top ten viruses of the period, the top viruses by type and the viruses of the year.

Posted by Martijn Grooten on Mar 30, 2016

Security researcher Andreas Lindh recently found a vulnerability in Apache OpenMeetings that could allow remote code execution on a vulnerable server. Andreas reported the vulnerability to the OpenMeetings developers and, once it had been patched, he wrote up the details.

Posted by Helen Martin on Mar 24, 2016

Word and Excel’s internal file formats used to be something in which few were interested – until macro viruses came along and changed all that. In 1996, Andrew Krukov provided an overview of the new breed of viruses.

Posted by Martijn Grooten on Mar 18, 2016

You have until the early hours (GMT) of Monday 21 March to submit an abstract for VB2016! The VB2016 programme will be announced in the first week of April.

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Compromised Yahoo! accounts continue to spread Android malware

Problem likely to be on Yahoo!'s side.
Problem likely to be on Yahoo!'s side. In recent weeks, we have noticed an uptick in the amount of spam sent from compromised Yahoo! accounts; we have reasons to believe the… https://www.virusbulletin.com/blog/2013/06/compromised-yahoo-accounts-continue-spread-android-malware/

AV Test releases Android test data

30 mobile solutions tested for malware protection and speed hit.
30 mobile solutions tested for malware protection and speed hit. Independent test organization AV-Test has released its latest report, covering the Andriod platform. This major… https://www.virusbulletin.com/blog/2013/06/av-test-releases-android-test-data/

India believed to be source of sophisticated surveillance campaigns

In-depth investigations find widespread worldwide snooping, Pakistan primary target.
In-depth investigations find widespread worldwide snooping, Pakistan primary target. Several reports have emerged recently covering a highly organised campaign of targeted… https://www.virusbulletin.com/blog/2013/05/india-believed-be-source-sophisticated-surveillance-campaigns/

Commoditization increasingly seen in mobile malware

Number of malicious samples and families increase, as Android remains most popular mobile platform.
Number of malicious samples and families increase, as Android remains most popular mobile platform. As the number of mobile malware samples in existence continues to grow faster… https://www.virusbulletin.com/blog/2013/05/commoditization-increasingly-seen-mobile-malware/

Program turns anti-analysis tools against the malware

Users cautioned to be wary of a false sense of security.
Users cautioned to be wary of a false sense of security. Could you defeat VM-aware malware by making your system aware of VM-aware malware? Tricks to frustrate researchers and… https://www.virusbulletin.com/blog/2013/05/program-turns-anti-analysis-tools-against-malware/

Flame worm one of the most complex threats ever discovered

Malware possibly used for cyber-espionage.
Malware possibly used for cyber-espionage. The jury is out on whether 'Flame' (also known as 'Flamer' or 'Skywiper') is 'the most lethal cyberweapon to date' as some have claimed,… https://www.virusbulletin.com/blog/2012/05/flame-worm-one-most-complex-threats-ever-discovered/

FBI warns against malware installed via hotel networks

Malware poses as fake update of popular software.
Malware poses as fake update of popular software. The FBI has warned travellers against fake software updates served through hotel connections which actually attempt to install… https://www.virusbulletin.com/blog/2012/05/fbi-warns-against-malware-installed-hotel-networks/

Android malware served via compromised websites

Malware downloaded automatically, but requires user permission to be installed.
Malware downloaded automatically, but requires user permission to be installed. Researchers at mobile security company Lookout have discovered a number of compromised websites that… https://www.virusbulletin.com/blog/2012/05/android-malware-served-compromised-websites/

Significant rise in malicious spam and phishing

Over one quarter of malicious emails contain eight-year-old malware.
Over one quarter of malicious emails contain eight-year-old malware. Email security firm eleven has reported a significant rise in both malicious emails and phishing emails in the… https://www.virusbulletin.com/blog/2012/04/significant-rise-malicious-spam-and-phishing/

New Zeus/SpyEye botnet does away with command-and-control servers

Increasing use of UDP to avoid communication tracking.
Increasing use of UDP to avoid communication tracking. Researchers at Symantec have discovered a new parallel build of Zeus (also known as Zbot) and SpyEye that appears to be… https://www.virusbulletin.com/blog/2012/02/new-zeus-spyeye-botnet-does-away-command-and-control-servers/

Sykipot trojan used to target smart cards

Defence companies among small number of targets.
Defence companies among small number of targets. Researchers at Alienvault have discovered a version of the 'Sykipot' trojan that is being used to target organisations that make… https://www.virusbulletin.com/blog/2012/01/sykipot-trojan-used-target-smart-cards/

'Largest takedown ever' sees six arrested

Millions made through 'DNSChanger' malware.
Millions made through 'DNSChanger' malware. Six Estonian nationals have been arrested for taking part in a cybercrime ring that made money through DNS-changing malware that had… https://www.virusbulletin.com/blog/2011/11/largest-takedown-ever-sees-six-arrested/

VB conference hashtag used to spread malware

Tweet promising conference news links to trojan.
Tweet promising conference news links to trojan. A tweet using the #vb2011 hashtag, which was used in numerous tweets referring to last week's VB2011 conference, contained a link… https://www.virusbulletin.com/blog/2011/10/vb-conference-hashtag-used-spread-malware/

Government trojan found on German computers

Four states admit the use of spyware.
Four states admit the use of spyware. Controversy has arisen in Germany, after the well-known CCC hacker group reported that it had found a trojan that was used to spy on behalf of… https://www.virusbulletin.com/blog/2011/10/government-trojan-found-german-computers/

Alureon trojan uses steganography to receive commands

Messages hidden inside images create extra layer of redundancy.
Messages hidden inside images create extra layer of redundancy. Researchers at Microsoft have discovered a new variant of the 'Alureon' trojan that uses steganography to make… https://www.virusbulletin.com/blog/2011/09/alureon-trojan-uses-steganography-receive-commands/

Malicious spam campaigns leave experts puzzled

Increase in malware in spam has not led to increase in malicious activity.
Increase in malware in spam has not led to increase in malicious activity. Security researchers have noticed a significant increase in the quantity of spam sent with malicious… https://www.virusbulletin.com/blog/2011/09/malicious-spam-campaigns-leave-experts-puzzled/

Banking malware tells user to 'refund' money

Web injection used to suggest accidental transfer.
Web injection used to suggest accidental transfer. In a new twist to banking trojans, a piece of malware found on German computers tricks victims into believing a large amount has… https://www.virusbulletin.com/blog/2011/08/banking-malware-tells-user-refund-money/

Malicious PHP script hides bad stuff inside 'white-space'

Spaces and tabs used to encode into binary.
Spaces and tabs used to encode into binary. Researchers at Kaspersky have discovered a malicious PHP script that uses an inventive way to obfuscate its malicious behaviour. The… https://www.virusbulletin.com/blog/2011/06/malicious-php-script-hides-bad-stuff-inside-white-space/

Facebook scam serving malware

Attack targeting Windows and Mac users in US and UK.
Attack targeting Windows and Mac users in US and UK. A Facebook scam that is doing the rounds at the moment - claiming to contain a 'freaky video' related to the ongoing case… https://www.virusbulletin.com/blog/2011/06/facebook-scam-serving-malware/

Canada new hotbed for cybercriminal activity

Country's IP addresses less likely to be scrutinized.
Country's IP addresses less likely to be scrutinized. Security firm Websense has reported a significant increase in cybercrime originating in Canada. Hitherto, Canada and… https://www.virusbulletin.com/blog/2011/05/canada-new-hotbed-cybercriminal-activity/

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