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Security Response
Showing posts for May of 2013
Showing posts in English
John-Paul Power | 29 May 2013 23:42:56 GMT

We’ve all heard a really annoying song on the radio on the way to the supermarket and then are shocked and ashamed to find ourselves humming the tune while perusing the frozen foods isle. All it takes then is for a fellow shopper to overhear your rendition of that eighties rock classic and before you know it the tune has infected their brain, and so on and so on. All this sounds very much like a virus, spreading from one computer/human to another leaving infection as it travels, if only Symantec did an anti-Irritating eighties rock product!

All joking aside, malware that can spread or receive commands through sound seems like something out of a far-fetched sci-fi movie right? Not according to researchers at the University of Alabama at Birmingham (UAB) who have recently released a paper entitled Sensing-Enabled Channels for Hard-to-Detect Command and Control of Mobile Devices...

Lionel Payet | 29 May 2013 01:05:48 GMT

The financial malware landscape is constantly evolving, cybercriminals are becoming more knowledgeable about the financial sector, and attacks are becoming more sophisticated. We’ve recently released a report, “The World of Financial Trojans,” describing the different features and techniques used by banking malware. It would seem that the choices made by the malware authors concerning these techniques and features depend on the cybercriminals’ financial resources and market knowledge.

In most cases financial malware favors exploit kits as their infection vector. In the past few months we have been actively monitoring an exploit kit, called Gongda, which is mainly targeting South Korea. Interestingly, we have come across a piece of malware, known as Castov, being delivered by this exploit kit that targets specific South...

Samir_Patil | 23 May 2013 23:11:55 GMT

Contributor: Binny Kuriakose

Anonymity disguised as freedom of expression and lack of clear cut laws makes cyberspace murky from a security point of view. Countries are waking up and realizing that there is a need for laws which enable authorities to catch and punish cyberspace miscreants; however, these miscreants are very crafty.

Spammers are known to use ingenious methods to peddle spam and lately they have even begun using antispam laws themselves in an effort to spearhead spam attacks. This blog is not about analyzing the effectiveness of antispam laws; it is about how spammers are quoting the laws in emails in order to make the spam look legitimate.

There are some “grey area” emails, which fall somewhere between spam and legitimate mail, and sometimes there can be something very inconspicuous in the mail that can tip the balance in the mind of a recipient. Quoting antispam law in the body of the email and claiming that the email...

Rodrigo Calvo | 23 May 2013 21:04:25 GMT

Downloader.Liftoh is a Trojan horse detected by Symantec that downloads malware onto the compromised computer without the user noticing.

A new variant of this threat, discovered in early May, was identified in some Spanish-speaking countries in Latin America. This variant of Downloader.Liftoh sends messages in Spanish instead of English. The threat is similar to W32.Phopifas which we wrote about in our blog from October 2012.

The creators of Downloader.Liftoh use Skype, which is popular in Latin America, as well as other instant messaging applications to distribute the malware:

  1. The victim receives a message from someone who seems to be on their contact list...
Samir_Patil | 23 May 2013 12:03:44 GMT

Symantec is observing an increase in spam containing URLs. On May 16, URL spam volume increased by 12% from 84% to 96% and since then the URL spam volume fluctuated between 95% and 99%. That means 95% of the spam messages delivered during this period has one or more URLs in it.

Figure1_0.png

Figure 1. URL spam message volume

During this period, .ru was the most used top-level domain (TLD). As illustrated in Figure 2, it is interesting to note a drop in .ru spam and a simultaneous rise in .com and .pw spam. Over 73% of the URL spam contained the .ru, .com, or .pw TLDs.

Figure2.png

Figure 2. Top 3 TLDs distribution (last seven days)

...

Mathew Maniyara | 23 May 2013 06:03:47 GMT

Phishers are trying everything they can to improve their chances of harvesting user credentials. They are known for experimenting with different fake social media applications in a desperate move to lure users. Recently, we found a few examples of some new fake apps.

In the first example, the phishing site used an image of a girl along with the Facebook Like button. After clicking the button, users are prompted for their Facebook login credentials in order to “like” the photo. After the credentials are entered, the phishing site acknowledges the login and asks users to click another Like button. The button is placed beside a fake number indicating the number of likes already gained. The phishing site was hosted on servers based in Amsterdam, Netherlands.

Phishers_fake_FB_image1.png

Figure 1. Facebook Like button...

Anand Muralidharan | 22 May 2013 22:35:08 GMT

Natural disasters, like tornadoes and earthquakes, are quite common in the United States of America. Unfortunately, the Oklahoma City suburb of Moore experienced a violent tornado on Monday, May 20, that sadly resulted in dozens of casualties. Spammers take advantage of natural disasters with luring scams and Symantec Security Response has started to observe spam messages related to this tornado flowing into the Symantec Probe Networks. The top word combinations used in message headlines include:

  • Tornado – hits – Oklahoma
  • Massive – Tornado
  • Huge – Tornado
  • Tornado – survivors

Spammers Targetting 1.jpeg

Figure 1: Oklahoma City tornado spam campaign
 

These headers have been observed in the spam attack:

...
Candid Wueest | 21 May 2013 20:19:28 GMT

Having control over an email account can be a lot of power, even though most people would probably say they do not care if someone else is reading their private emails. But it’s not always about reading those private emails. Of course there have been quite a few attacks where secrets were revealed by snooping through emails of hacked accounts. The reasons vary from jealous spouses searching for proof of an assumed affair or as serious as corporate espionage in which certain parties are seeking essential information about a critical deal. Other attackers may use the compromised account to send social engineering messages to all contacts stored in the email account posing as the person whose account has been hacked.

Nowadays an email account is much more than just sending and receiving emails. Many free service providers like Microsoft or Google have various additional services attached to email accounts. Having access to these accounts means having access to such things...

Anand Muralidharan | 20 May 2013 19:02:16 GMT

Memorial Day is celebrated on May 27 and it is a day for memorializing the men and women who have died in military service for the United States. It is a common practice for cybercriminals to take advantage of events and holidays. This year, various spam messages related to Memorial Day have begun flowing into the Symantec Probe Network. We have observed that most of the spam samples encourage users to take advantage of clearance sales on cars and trucks. Clicking the URL will automatically redirect the user to a website containing some bogus offer.
 

Spammers Memorial 1 edit.png

Figure 1: Memorial Day financial spam
 

A variety of subject lines have been observed related to the clearance sale spam attacks for Memorial Day:

  • Subject: Memorial Day Auto...
Symantec Security Response | 20 May 2013 13:39:02 GMT

Today Norman and the Shadowserver Foundation released a joint detailed report dubbed Operation Hangover, which relates to a recently released ESET blog about a targeted cyber/espionage attack that appears to be originating from India. Symantec released a brief blog around this incident last week and this Q&A will provide additional information relevant to Symantec around this group.

Q: Do Symantec and Norton products protect against threats used by this group?
Yes. Symantec confirms protection for attacks associated with Operation Hangover through our antivirus and IPS signatures, as well as STAR...