Feeds

Not your father's spam: Trojan slingers attach badness to attachment WITHIN attachment

Banking baddies in recursive ruse

5 things you didn’t know about cloud backup

Cybercrooks are upping the ante by loading malware as an attachment inside another attachment in a bid to slip past security defences.

A new variant of the Upatre Trojan comes bundled in spammed messages that imitate emails from known banks such as Lloyds Bank and Wells Fargo. The .MSG file of the malicious emails contains another .MSG file attached with an attached "ZIP" file.

The ZIP files poses as a password-protected archive containing a "secure message" from the intended victim's bank while in reality containing a variant of the Upatre Trojan.

Opening the "ZIP file" on a Windows machine results in an attempt to infect the machine before a download of a variant of the ZeuS (Zbot) banking Trojan ensues. The Trojan then attempts to snaffle online banking passwords.

Other malware is also downloaded as part of the same attack, specifically the Necurs malware, a well-known strain designed to disable computers’ security features before establishing a backdoor on compromised systems.

Upatre can be likened to a sherpa in the world of cybercrime, setting up a base camp for assaults by other cybercrime tools on weakly secured systems. Previous spam runs of Upatre have been associated with the distribution of the infamous Cryptolocker file-encrypting ransomware threat.

Trend Micro has put together a blog post on the evolution of the Upatre Trojan threat - including a more detailed description of the latest "spam within spam" distribution tactic - in a blog post here. ®

Secure remote control for conventional and virtual desktops

More from The Register

next story
Ice cream headache as black hat hacks sack Dairy Queen
I scream, you scream, we all scream 'DATA BREACH'!
Goog says patch⁵⁰ your Chrome
64-bit browser loads cat vids FIFTEEN PERCENT faster!
JLaw, Kate Upton exposed in celeb nude pics hack
100 women victimised as Apple iCloud accounts reportedly popped
NIST to sysadmins: clean up your SSH mess
Too many keys, too badly managed
Scratched PC-dispatch patch patched, hatched in batch rematch
Windows security update fixed after triggering blue screens (and screams) of death
Researchers camouflage haxxor traps with fake application traffic
Honeypots sweetened to resemble actual workloads, complete with 'secure' logins
Attack flogged through shiny-clicky social media buttons
66,000 users popped by malicious Flash fudging add-on
New Snowden leak: How NSA shared 850-billion-plus metadata records
'Federated search' spaffed info all over Five Eyes chums
Three quarters of South Korea popped in online gaming raids
Records used to plunder game items, sold off to low lifes
Oz fed police in PDF redaction SNAFU
Give us your metadata, we'll publish your data
prev story

Whitepapers

Endpoint data privacy in the cloud is easier than you think
Innovations in encryption and storage resolve issues of data privacy and key requirements for companies to look for in a solution.
Implementing global e-invoicing with guaranteed legal certainty
Explaining the role local tax compliance plays in successful supply chain management and e-business and how leading global brands are addressing this.
Advanced data protection for your virtualized environments
Find a natural fit for optimizing protection for the often resource-constrained data protection process found in virtual environments.
Boost IT visibility and business value
How building a great service catalog relieves pressure points and demonstrates the value of IT service management.
Next gen security for virtualised datacentres
Legacy security solutions are inefficient due to the architectural differences between physical and virtual environments.