Breaking: Symantec discovers Trojan targeting Skype users

Early this evening, Symantec issued an advisory that they have discovered the availability of source code for a Trojan that targets Skype users. The Trojan, once installed on a system, has the ability to record conversations in progress, and transmit the recording to a third party.

The Trojan is being called Trojan.Peskyspy, and can be delivered in any number of ways, including email links and social engineering attacks, where a user is tricked into downloading and installing an application.

The Trojan is targeting Windows API hooks, a technique used to alter the planned behavior of an application, which Microsoft has intended to be used by audio applications. The Trojan compromises the machine and then through the hooking technique is able to eavesdrop on a conversation before it even reaches Skype, or any other audio application.

Once a machine has been compromised, the Skype Trojan can use an application that handles audio processing within a computer and save the call data as an MP3 file. This MP3 is then sent over the Internet to a predefined server where the attacker can then listen to the recorded conversations. The MP3 is stored locally and encrypted before it is sent off.

“Recording the call as an MP3 keeps the size of the audio files low and means there is less data to be transferred over the network, helping to speed up the transfer and avoid detection,” Symantec said in their alert.

Presently, Symantec is calling the risk posed by this threat quite low, as they have not seen any evidence of compiled versions of the Trojan moving around online.

However, because the source code is publicly available, Malware authors can incorporate this type of functionality into their own malicious code. As a precaution, since there is no hard mitigation for the Trojan’s abilities aside from uninstalling Skype, Symantec says users should follow security best practices, install and keep up-to-date security software, and not click on links in suspicious e-mails.

In a semi-related story, since the Skype Trojan could be linked to Phishing scams, this alert comes in the same week that Symantec declared the start of Phishing Season.

With summer ending, Symantec said that they expect to see an increase in overall Phishing activity over the coming months.

“The number of Phishing attacks we observe tends to follow a natural pattern of high and low points, with the high points often occurring in the latter half of the year,” a company spokesperson said.

As more information on the Skype Trojan emerges, we will update this article.

Like this article? Please share on Facebook and give The Tech Herald a Like too!

From our Other Sites

McLaren 675LT Pictures

Some great shots of the forthcoming McLaren 675LT. This coupe will get you to 60mph in less than 2.9 second and go all the way to 205mph.

McLaren 675LT Details

McLaren’s 675LT will debut at this year’s Geneva show and promises some eye-popping performance. The coupe only 675LT has a 3.8 liter V8 that will get you from 0-60mph in less than 2.9 seconds and to 124mph in less than 7.9 secondsMore than a third of the parts have been changed compared with its stable mate […]

Octopus hunts on land, grabs crab (Video)

This crab is minding its own business searching the rock pools for food when suddenly an octopus leaps out of the water and grabs it. The amazing thing is that the octopus does not just jump on the crab it actually pulls it all the way back to the rock pool it came from. If you check the second video you will see it is not unknown for octopus to come out of the water and the one in the second video has a crab with it, though is not hunting one! Octopus Walks on Land at Fitzgerald Marine Reserve The video was taken by Porsche Indrisie in Yallingup, Western […]

Stunning Mars Rover Selfie

This image by the Curiosity Mars rover is not exactly your typical selfie. It is made up of a bunch of images taken by the rover during January 2015 by the Mars Hand Lens Imager. This (MAHLI) camera is at the end of the robot’s arm. For a sense of scale the rover’s wheels are about 20 inches diameter and 16 inches wide. Check the annotated image below for more information on the surroundings. Also if you really want to see some detail click this very large image, 36mb, at NASA.  

How the Sahara Helps Feed the Amazon (Video)

Sahara to Amazon
This cool video from NASA shows how dust is transferred across the Atlantic to the Amazon rainforest and helps nourish the plants growing there. For the first time scientists have measured the amount of dust and the amount of phosphorus in the dust. The later acts like a fertiliser and helps replenish the phosphorus the rainforest loses each year, around 22,000 tons. Amazing how something we perceive as being desolate like a desert actually has an important role in sustaining somewhere we see as teeming with life. Image and video from NASA’s Goddard Space Flight Center.

Bouncing Laser Guided Bomb (Video)

This amazing video shows a laser guided bomb bouncing back up after hitting its target. We actually think this is a non-explosive bomb designed to test guidance systems but it is still pretty remarkable and somewhat scary.

South Koreans Swallowed by Sinkhole (Video)

Thankfully the couple survived their adventure.
This amazing footage taken from the CCTV on a passing bus shows the moment two pedestrians in South Korea fall down a sinkhole in the street! Rescue workers managed to save the pair, who were treated in a nearby hospital for minor injuries. According to reports the city authorities and the Korean Geotechnical Society are looking into the cause.

Cheetah Pictures

Some Cool Cheetah Pictures Cheetahs are found mainly in Africa but also some parts of the Middle East. These sleek animals are the fastest land mammals in the world and can hit 60 mph in about 3 seconds, though they cannot maintain this speed for long. Cheetahs prey mostly on antelopes and smaller mammals but occasionally go for something bigger. We hope you enjoy these photos and don’t forget to check out the other speedy land mammals on our list of the fastest.

Sherlock Holmes Quiz

Sherlock Holmes
Sherlock Holmes was a man who absorbed information like a sponge and had a razor sharp mind. How much do you know about the famous fictional detective from the books?

22 years without Ferruccio Lamborghini

Lamborghini posted this photo today saying: “22 years without Ferruccio Lamborghini.” Ferruccio passed away on February 20th 1993 aged 76. Interestingly he started out making tractors!