Security consultant Sophos is warning of the appearance of money-grabbing Trojan Horse malware aimed at Macs
The firm isn't being alarmist with news of the Imunizator Trojan, which makes false claims that Macs have privacy problems as part of its attempt to install itself. Sophos advises users not to panic.
The Trojan, also known as Troj/MacSwp-B, tries to scare Mac users into purchasing unnecessary software by claiming that privacy issues have been discovered on the computer.
"Windows users are no stranger to scareware like this, but it is rarer on the Mac. Nevertheless, the discovery of this Trojan horse does follow fast on the heels of other malware that has been identified on Mac OS X in recent months," said Graham Cluley, senior technology consultant for Sophos.
"Cybercrime against Mac users may be small in comparison to Windows attacks, but it is growing. Mac users need to learn from the mistakes made by their Windows cousins in the past and ensure that they have defenses in place, are up-to-date with patches and exercise caution about what they run on their computer."
Sophos experts note that the new Trojan horse is closely related to another piece of Mac scareware, MacSweeper, which was being deployed in an attack via online adverts on ITV.com and the website of the Radio Times last month.
"It's not unusual to see hackers repackage their malware in a variety of disguises to try and sneak it past anti-malware software," explained Cluley.
Earlier this year Sophos published its annual Security Threat Report, which described how financially motivated hackers had targeted Macs for the first time in 2007.
Macworld.co.uk is an InfoWorld affiliate.
This whitepaper explains the terminology and concepts behind Data Replication technologies and establishes some sizing rules through worked examples. Learn the new paradigm in disaster tolerance—protect data anywhere.
Download now »Download a free 30day trial and experience how XenDesktop delivers a pristine, ondemand desktop experience to users on whatever device they choose, while cutting IT complexity and costs.
Download now »
The emergence of WLANs has created a new breed of security threats to enterprise networks.
Included in HP ProCurve WLAN solutions is security technology that alleviates threats from WLANs through:
* Monitoring wireless activity inside and out of the enterprise
* Classifying WLAN transmissions into harmful and harmless
* Preventing transmissions that pose a security threat to the enterprise network
* Locating participating devices for physical remediation

Sign up to receive Security Resource Alerts
This white paper provides guidance on how to develop a strategic approach to managing and monitoring logs, a key function required for compliance with many regulatory mandates and a critical defense against security threats.
Download now! »Learn about the processes and technologies that support security information management (SIM) operations, as well as the business case for SIM. The series examines different options for implementing SIM and gives you evaluation criteria for selecting the best option for your organization.
Download now! »Learn the strategies, actions, and capabilities that Best-in-Class organizations employ and technologies they choose to obtain superior performance against various security performance metrics. This report provides guidelines for identifying which security solutions to consume as a MSS and defines best practices for choosing and managing MSSPs.
Download now! »