McAfee Labs has released an updated Threat Advisory for W97M/Downloader and X97M/Downloader.

W97M/Downloader and X97M/Downloader are Microsoft Office files that contain a malicious macro. The only difference between them is that W97M detections are related to Word files and X97M detections are related to Excel files. The macro downloads and executes other malware on the infected machine. The malicious Office file usually arrives on a machine as an attachment as part of spam or phish emails. The file can be a Word document (.doc file and .docx file) or an Excel workbook (.xls file and .xlsx file).

McAfee Labs Threat Advisory for Ransomware-Locky

Ransomware-Locky is a ransomware that upon execution encrypts certain file types present in the user’s system.
The compromised user has to pay the attacker to get the files decrypted.

McAfee Labs has released an updated Threat Advisory for W32/Pinkslipbot.

The W32/Pinkslipbot worm is capable of spreading over network shares, downloading files, and updating its software. Additionally, it is capable of receiving back door command from its IRC command and control center. It attempts to steal user information and upload it to FTP sites.

McAfee Labs Threat Advisory for JS/Nemucod

JS/Nemucod is a JavaScript downloader trojan that targets users through malware spam campaigns. JS/Nemucod downloads additional malware and executes it without the user’s consent. JS/Nemucod usually arrives through malicious spam emails with .zip extensions. When a user opens the .zip file and double clicks the JavaScript, the default web browser opens and executes the script.