Malware

Latest Study Suggests Computers Remain Infected Far Longer Than Previously Suggested

Contrary to previous security reports suggesting compromised machines remain infected for 6 weeks, experts at Trend Micro say these estimates are far from accurate. In its recent blog post the company said: "During the analysis of approximately 100 million compromised IP addresses, we identified that half of all IP addresses were infected for at least 300 days. That percentage rises to eighty percent if the minimum time is reduced to a month." Additionally the study also indicates that while three quarter of the IP addresses were linked to consumer users, the remaining quarter belonged to enterprise users. more

Latvian ISP Closure Dents Cutwail Botnet ...for a Whole 48 Hours

From MessageLabs' latest report: "Real Host, an ISP based in Riga, Latvia was alleged to be linked to command-and-control servers for infected botnet computers, as well as being linked to malicious websites, phishing websites and 'rogue' anti-virus products. Real Host was disconnected by its upstream providers on 1 August 2009. The impact was immediately felt, where spam volumes dropped briefly by as much as 38% in the subsequent 48-hour period. Much of this spam was linked to the Cutwail botnet, currently one of the largest botnets and responsible for approximately 15-20% of all spam. Its activity levels fell by as much as 90% when Real Host was taken offline, but quickly recovered in a matter of days." more

Apparently Legitimate Estonian ISP Operating as Large Cybercrime Hub Since 2005

An apparently legitimate ISP in Tartu, Estonian is reported to have been serving as the operational headquarters of a large cybercrime network since 2005 according to TrendWatch, the security research arm of TrendMicro. "An Estonian company is actively administering a huge number of servers in numerous datacenters, which together form a network to commit cybercrime. It appears that the company from Tartu, Estonia controls everything from trying to lure Internet users to installing DNS changer Trojans by promising them special video content, and finally to exploiting victims' machines for fraud with the help of ads and fake virus infection warnings..." more

MAAWG Issues ISP Guidelines for End-User Bot Removal

Messaging Anti-Abuse Working Group (MAAWG) has issued the first best practices aimed at helping the global ISP industry work more closely with consumers to recognize and remove bot infections on end-users' machines. The paper outlines a three-step approach with recommendations for detecting bots, notifying users that their computers have been compromised, and guiding them in removing the malware. more

Survey Suggests Strained Budgets Causing Security Cutbacks on Known Threats

A recent survey of security professionals by RSA Conference with regards to critical security threats and infrastructure issues currently faced, revealed budgetary constrains as the top challenge currently faced. According to reports, the study suggests that even though practitioners are most concerned about email phishing and securing mobile devices, technologies addressing these needs are at risk of being cut from IT budgets. 72% percent of respondents indicated a rise in email-borne malware and phishing attempts since Fall 2008, with 57% stating they have seen an increase in Web-borne malware. Concerns about zero-day attacks and rogue employees as a result of layoffs were cited by 28% and 26% of survey respondents, respectively. more

Malware Production Continues at Record-Setting Pace; 6000 Unique Pieces Per Day

Security researches report seeing as much unique malware in the first half of 2009 as seen in all of 2008. "This is quite something when you consider that in 2008 we saw the greatest ever growth in malware," says David Marcus of McAfee Avert Labs. More specifically, Marcus in a blog post writes that the numbers add up to an average of 200,000 unique pieces malware monthly or more than 6,000 a day. "Bear in mind these are malware we consider unique (something we had to write a driver for) and does not count all the other malware we detect generically or heuristically... When you add in the generic and heuristic detections the number becomes truly mind boggling," writes Marucs. more

Global Recession Appears to Have Also Hit the Malware Industry

According to reports by German software security company G Data, since the beginning of summer, the malware community appears to have been scaling back its activities. This considerable reduction is, according to the estimates of G Data security expert Ralf Benzmüller, not solely due to the forthcoming holiday season. The global recession appears to have also hit the eCrime economy. "This phenomenon emerges every year as something new. At the start of the holiday season, the number of malware programs falls. One reason for this is the worldwide onset of the travel season, which, based on experience, causes a drop in the number of active Internet users. However, this does not explain a collapse of more than 30 percent," says Ralf Benzmüller. more

Trojans Fastest Growing Category of Data-Stealing Malware

The Anti-Phishing Working Group (APWG) recently reported that the number of sites infecting PCs with password-stealing crimeware reached an all time high of 31,173 in December 2008 - an 827 percent increase from January. And according to a report just released by Trend Micro's Focus Report, 93 percent of data-stealing malware have been identified as Trojans in the first quarter of 2009. more

Gary Warner: We Are Well Past Time to Declare a Spam Crisis in China

In a blog post last week, Gary Warner, director of research in computer forensics at the University of Alabama's (UAB) computer and information sciences department, wrote that it is well past time for someone to declare a "Spam Crisis in China". The warning comes along with UAB's reports that most of the spam they receive has ties to China. "It is very normal that more than one-third of the domain names we see each day in spam messages come from China," Warner wrote. "When one also considers the many '.com' and '.ru' domain names which are also hosted in China, the problem is much worse. More than half of all spam either uses domain names registered in China, is sent from computers in China, or uses computer in China to host their web pages." more

Google Reveals Top 10 Malware Sites From Its Index

While scanning its index, Google in the last two months reports to have found more than 4,000 different websites suspected of distributing malware by massively compromising popular websites. "Of these domains more than 1,400 were hosted in the .cn TLD. Several contained plays on the name of Google such as goooogleadsence.biz, etc.," says Google's security team member, Niels Provos, in a blog post today. more

Obama: From Now On Digital Infrastructure Treated As Strategic National Asset

In a speech today from the White House, President Obama declared that the United States' computers and digital networks are strategic national assets and that he will personally appoint a cybersecurity coordinator to oversee the effort to protect this critical infrastructure. more

Rustock, Xarvester Spambots Capable of Sending 25,000 Messages Per Hour, Says New Study

A recent study suggests Rustock and Xarvester malware provided the most efficient spambot code, enabling individual zombie computers to send 600,000 spam messages each over a 24 hour period. "Over the past few years, botnets have revolutionized the spam industry and pushed spam volumes to epidemic proportions despite the best efforts of law enforcement and the computer security industry. Our intention was to better understand the origins of spam, and the malware that drives it," said Phil Hay, senior threat analyst, TRACElabs (a research arm of security company Marshal8e6)... more

Asia, Europe Top the Charts on Conficker Worm Infections

Amidst hype and anticipation of the Conficker worm which is expected to become active in millions of Windows system within the next few hours, IBM Internet Security Systems team reports they have been able to locate infected systems across the world by reverse-engineering the communications mechanisms. Holly Stewart, X-Force Product Manager at IBM Internet Security Systems, writes: "... the details are still unfolding, but we can tell you from a high level where most infections are as of today. Asia tops the charts so far. By this morning, it represented nearly 45% of all of the infections from our view. Europe was second at 31%. The rest of the geographies held a much smaller percentage overall." more

Security Researchers Uncover Cyber Espionage Network Invloving 103 Countries

A report released over the weekend by Information Warfare Monitor along with an exclusive story by the New York Times, revealed a 10-month investigation of a suspected cyber espionage network (dubbed GhostNet) of over 1,295 infected computers in 103 countries. 30% of the infected computers are labeled as high-value targets, including ministries of foreign affairs, embassies, international organizations, news media, and NGOs. Greg Walton, editor of Information Warfare Monitor and a member of the Toronto academic research team that is reporting on the spying operation, writes... more

Yellow Parking Violation Fliers on Windshields Get Drivers to Visit Malicious Website

Security expert and malware analyst, Lenny Zeltser has examined a creative malware distribution method in the real world where fliers placed on windshield of cars scare drivers into visiting a malicious website. Zeltser writes: "Several days ago, yellow fliers were placed on the cards in Grand Forks, ND. They stated: 'PARKING VIOLATION This vehicle is in violation of standard parking regulations. To view pictures with information about your parking preferences, go to website-redacted' ... If you went to the website, you'd see several photos of cars on parking lots in that specific town..." more