SID 1:43605

Rule Category

BROWSER-PLUGINS -- Snort has detected suspicious browser plugin traffic, likely targeting the ActiveX plugin in Internet Explorer, though this could apply to any browser. Attackers have refined techniques to smuggle extensions into the Chrome Web Store, which they can then modify remotely once downloaded to add or activate malicious or spyware features. This can be similar to a Potentially Unwanted Application, as valuable data and network access is often allowed on a phone or browser without proper investigation. Some extensions also mimic more well-known and trusted ones (AdBlock, etc.)

Alert Message

BROWSER-PLUGINS Microsoft Access Snapshot Viewer ActiveX function call access attempt

Rule Explanation

The Microsoft Office Snapshot Viewer ActiveX control in snapview.ocx 10.0.5529.0, as distributed in the standalone Snapshot Viewer and Microsoft Office Access 2000 through 2003, allows remote attackers to download arbitrary files to a client machine via a crafted HTML document or e-mail message, probably involving use of the SnapshotPath and CompressedPath properties and the PrintSnapshot method. NOTE: this can be leveraged for code execution by writing to a Startup folder. Impact: CVSS base score 6.8 CVSS impact score 6.4 CVSS exploitability score 8.6 confidentialityImpact PARTIAL integrityImpact PARTIAL availabilityImpact PARTIAL Details: Ease of Attack:

What To Look For

No information provided

Known Usage

No public information

False Positives

No known false positives

Contributors

Talos research team. This document was generated from data supplied by the national vulnerability database, a product of the national institute of standards and technology. For more information see [nvd].