Previously limited almost exclusively to machines running Windows two new Ransomware variants have been detected that target Apple Mac users.
The first encrypts data and demands payment before files are released. This is similar to standard, the second is spyware that captures screenshots and keystrokes.
Both attacks are relatively new, and details on their origins are still sparse. Users are advised to keep regular backups of their data in case their devices are compromised and files are made inaccessible.
Both programs were uncovered by the security firms Fortinet and AlienVault, which found a portal on the Tor network.
Today security experts are warning of the continued spread of WCry and of numerous variants being released over the weekend.
Typical of Any Ransomware users should be vigilant with any emails that could be carrying a payload or be links to a payload. At this point Microsoft has not ruled out any attack vectors:
We haven’t found evidence of the exact initial entry vector used by this threat, but there are two scenarios we believe are highly possible for this ransomware family:
- Arrival through social engineering emails designed to trick users to run the malware and activate the worm-spreading functionality with the SMB exploit
- Infection through SMB exploit when an unpatched computer can be addressed in other infected machines
Microsoft has released a patch for Operating systems going as far back as XP:
Windows update MS17-010
Microsoft has released an update to the Microsoft Malware Protection Engine addressing a security vulnerability. The update addresses a vulnerability that could allow remote code execution if the Microsoft Malware Protection Engine scans a specially crafted file. An attacker who successfully exploited this vulnerability could execute arbitrary code in the security context of the LocalSystem account and take control of the system.
Users should run their Microsoft updates ASAP and apply the patch if using one of the Microsoft Provided Malware products such as the Windows Defender line.
Multiple security companies have reported an exploit in the wild infecting users with the Dridex Trojan. When recipients open the document, the exploit – if successful – is used to carry out a series of actions that lead to the installation of Dridex botnet ID 7500 on the user’s system.
All users should always be extremely careful when opening any attachment in email and should apply the patch expected to be provided by Microsoft tonight.
Mainstream support for Vista ended in April 2012, Extended support is ending April 11, 2017 which means no further security updates or paid support. With no updates the use of Windows Vista is not advices and we recommend all personal and business computers be updated to Windows 7 or Windows 10.
US-CERT is warning consumers of email-based phishing campaigns targeting airline consumers. Consumers who have booked flights should be vigilante and ensure any email the receive is indeed legitimate. We recommend not following links from received emails and to go directly to the Airline web pages and verify any information there.