Feeds

Phishing Trojan plays ping-pong with captured data

Hide and seek

Security for virtualized datacentres

Security researchers have identified a new Trojan which sends data back to attackers via an unconventional communications protocol (for malware) in a bid to escape detection.

The as-yet unnamed phishing Trojan transmits stolen information back to hackers via ICMP (Internet Control Message Protocol) packets instead of email or HTTP packets, the standard route for transmitting purloined information.

After infecting a victim's computer, the Trojan is programmed to install itself as an Internet Explorer Browser Helper Object (BHO). The software then waits for a victim to post sensitive data online. This data, once entered, is captured by the Trojan and sent to attackers.

Instead of using email or HTTP POST requests, the Trojan encodes purloined data using a simple XOR algorithm before placing it into the data section of an ICMP ping packet.

"To network administrators and egress filters, this ICMP packet looks like legitimate traffic leaving the network. However, the ICMP packet actually contains encoded personal information entered by a user. The attackers presumably capture this packet at their remote server, where the packet is easily decoded to reveal the information entered by the user," reports web security firm Websense, which analysed the behaviour of the Trojan after being among the first to receive samples of the malware code. ®

Beginner's guide to SSL certificates

More from The Register

next story
FYI: OS X Yosemite's Spotlight tells Apple EVERYTHING you're looking for
It's on by default – didn't you read the small print?
Edward who? GCHQ boss dodges Snowden topic during last speech
UK spies would rather 'walk' than do 'mass surveillance'
Microsoft pulls another dodgy patch
Redmond makes a hash of hashing add-on
NOT OK GOOGLE: Android images can conceal code
It's been fixed, but hordes won't have applied the upgrade
DEATH by PowerPoint: Microsoft warns of 0-day attack hidden in slides
Might put out patch in update, might chuck it out sooner
'LulzSec leader Aush0k' found to be naughty boy not worthy of jail
15 months home detention leaves egg on feds' faces as they grab for more power
prev story

Whitepapers

Cloud and hybrid-cloud data protection for VMware
Learn how quick and easy it is to configure backups and perform restores for VMware environments.
A strategic approach to identity relationship management
ForgeRock commissioned Forrester to evaluate companies’ IAM practices and requirements when it comes to customer-facing scenarios versus employee-facing ones.
High Performance for All
While HPC is not new, it has traditionally been seen as a specialist area – is it now geared up to meet more mainstream requirements?
Three 1TB solid state scorchers up for grabs
Big SSDs can be expensive but think big and think free because you could be the lucky winner of one of three 1TB Samsung SSD 840 EVO drives that we’re giving away worth over £300 apiece.
Security for virtualized datacentres
Legacy security solutions are inefficient due to the architectural differences between physical and virtual environments.