Security researchers at Check Point Research recently identified a malicious update.7z archive used in targeted attacks. This specific version contained a legitimate 7z.exe binary alongside a malicious DLL ( iscsiexe.dll ) used for post-compromise activities. File Identification & Safety
If the file is in a folder like C:\Program Files\PCSX2 or a Comodo directory, it is likely a legitimate leftover from a software update.
Use a tool like 7-Zip to view the contents without extracting them. Look for suspicious files like unexpected .dll or .exe files that don't match the software's known components. Technical Summary File Extension .7z (7-Zip Archive) Common Origin Automated software update scripts or installers Typical Contents Update.7z
Given that attackers use this generic name to hide malicious payloads, always scan the file with an antivirus or upload it to a service like VirusTotal before attempting to open it.
Official scripts for Comodo Client - Security use a file named update.7z hosted on their servers to deliver binary updates to Windows systems. Use a tool like 7-Zip to view the
The file is a generic name for a compressed archive used by various software applications and systems to deliver updates, patches, or configuration files. Because it is a common name, its purpose and contents depend entirely on the software that created it. Overview of "Update.7z"
A .7z file is a compressed archive created with 7-Zip or other compatible tools. It uses the LZMA/LZMA2 compression algorithms, known for high compression ratios. In most contexts, "Update.7z" is a temporary file downloaded by an application's built-in updater. Official scripts for Comodo Client - Security use
Variable (Legitimate if from trusted software; high risk if found in unexpected directories) Update 7z binary and License.txt #39 - GitHub