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Security Response
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Kevin Haley | 08 Apr 2014 09:28:08 GMT

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Once again, it’s time to reveal the latest findings from our Internet Security Threat Report (ISTR), which looks at the current state of the threat landscape, based on our research and analysis from the past year. Key trends from this year’s report include the large increase in data breaches and targeted attacks, the evolution of mobile malware and ransomware, and the potential threat posed by the Internet of Things. We’ll explore each of these topics in greater detail below.

The year of the mega data breach
While 2011 was hailed by many as the “Year of the Data Breach,” breaches in 2013 far surpassed previous years in size and scale. For 2013, we found the number of data...

Roberto Sponchioni | 07 Apr 2014 23:49:19 GMT

Windows PowerShell, the Microsoft scripting language, has made the headlines recently due to malware authors leveraging it for malicious purposes. Symantec has identified more PowerShell scripts being used for nefarious purposes in attacks. Unlike other PowerShell scripts that we have identified previously, the new script, which Symantec detects as Backdoor.Trojan, has different layers of obfuscation and is able to inject malicious code into “rundll32.exe” so that it can hide itself in the computer while still running and acting like a back door.

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Figure 1. The original Microsoft Windows PowerShell script

As seen from the previous...

Avdhoot Patil | 07 Apr 2014 07:25:58 GMT

Contributor: Parag Sawant

Phishers continuously come up with various plans to enhance their chances of harvesting users’ sensitive information. Symantec recently observed a phishing campaign where data is collected through a fake voting site which asks users to decide whether boys or girls are greater.

The phishing page, hosted on a free web hosting site, targets Facebook users and contains a fake voting campaign, “WHO IS GREAT BOYS OR GIRLS?” along with the “VOTE” button to register votes. The page is also embedded with pair of bar charts representing voting ratio and displays the total votes gained for the last four years. These give a more legitimate feel to the fake application.

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Figure 1. The Facebook application asks users to register their votes

The first phishing page contains a button to initiate the...

Satnam Narang | 04 Apr 2014 14:56:45 GMT

Earlier this week, a large number of Twitter accounts were compromised and used by spammers to spread “miracle diet” spam. The compromised accounts included public figures, as well as average users of the social networking service.

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Figure 1. Twitter miracle diet spam

Déjà vu
Diet spam is quite common and can been found on various social networking sites and Twitter is no stranger to this problem. Over the years, we’ve seen many different campaigns try to capitalize on the latest miracle diet craze. In this particular case, spammers are trying to peddle garcinia cambogia extract through a page designed to look identical to the real Women’s Health website.

...

Joji Hamada | 03 Apr 2014 09:08:58 GMT

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In recent years, the Japanese Internet community has faced difficult times trying to combat financial Trojans such as SpyEye (Trojan.Spyeye) and Zeus (Trojan.Zbot). The number of victims affected and the amount of funds withdrawn from bank accounts due to compromises is increasing at an alarming rate. Just to give you an idea, according to the Japanese National Police Agency, the number of reported illegal Internet banking withdrawals jumped from 64 incidents in 2012 to 1,315 incidents in 2013. The loss in savings amounted to approximately 1.4 billion yen (US$ 14 million) in 2013, up from 48 million yen (US$ 480,000) in 2012.

More recently, the nation has also...

Orla Cox | 02 Apr 2014 13:59:50 GMT

Attacks are getting bigger and bolder and this calls for a new approach to cybersecurity. Cybercriminals have broadened their scope beyond conventional computer systems and now almost every connected device can be a target. 2013 was the year of the megabreach, where we witnessed some of the biggest data breaches of all time with over 500 million records exposed. Point of Sale terminals have been infected with malware in order to siphon off millions of credit card records. Attackers are even going one step further and using malicious code to steal cold hard cash. A recent piece of malware, Ploutus, allows criminals to use a mobile phone to get an ATM to spit out cash by sending a...

Symantec Security Response | 31 Mar 2014 14:41:18 GMT

On the back of Cryptolocker’s (Trojan.Cryptolocker) perceived success, malware authors have been turning their attention to writing new ransomcrypt malware. The sophisticated CryptoDefense (Trojan.Cryptodefense) is one such malware. CryptoDefense appeared in late February 2014 and since that time Symantec telemetry shows that we have blocked over 11,000 unique CryptoDefense infections. Using the Bitcoin addresses provided by the malware authors for payment of the ransom and looking at the publicly available Bitcoin blockchain information, we can estimate that this malware earned cybercriminals over $34,000 in one month alone (according to Bitcoin value at time of writing).

Imitation
Imitation is not...

Symantec Security Response | 31 Mar 2014 03:48:11 GMT

Symantec has observed the growth of indigenous groups of attackers in the Middle East, centered around a simple piece of malware known as njRAT. While njRAT is similar in capability to many other remote access tools (RATs), what is interesting about this malware is that it is developed and supported by Arabic speakers, resulting in its popularity among attackers in the region.

The malware can be used to control networks of computers, known as botnets. While most attackers using njRAT appear to be engaged in ordinary cybercriminal activity, there is also evidence that several groups have used the malware to target governments in the region.

Symantec analyzed 721 samples of njRAT and uncovered a fairly large number of infections, with 542 control-and-command (C&C) server domain names found and 24,000 infected computers worldwide. Nearly 80 percent of the C&C servers...

Satnam Narang | 26 Mar 2014 08:37:40 GMT

In late January this year, eager fans purchased tickets for Coachella, an annual two-weekend, three-day music festival but were later targeted by scammers in a phishing campaign that persisted up till the end of February.

Front Gate Tickets, the company responsible for handling the festival’s ticketing had sent an email to ticket buyers at the end of February warning users on the phishing campaign stating:

“The phishing involved a fraudulent website designed to look like the login page for Coachella ticket buyers to access their Front Gate accounts, built in an attempt to capture username and password information.”

The email went on to explain that the phishing links were circulated on message boards and email campaigns, and that the perpetrators had harvested the email addresses of ticket buyers who posted them publicly on message...

Symantec Security Response | 25 Mar 2014 12:25:44 GMT

Microsoft posted a security advisory today for a newly discovered, unpatched vulnerability affecting Microsoft Word. An attacker could take advantage of the Microsoft Word Remote Memory Corruption Vulnerability (CVE-2014-1761) to gain remote access to the targeted computer. The advisory indicates that the vulnerability was exploited in limited, targeted attacks. 

Users should not only be cautious about opening unknown RTF documents, but they should also avoid previewing these files in Outlook, as doing so could let the attackers exploit the vulnerability. Be aware that the default viewer for RTF documents attached to emails in several versions of Outlook is Microsoft Word. 

While patches have not yet been made available, users can apply several workarounds to minimize the risk of exploitation. Microsoft...