full-disclosure - [FD] BFS-SA-2016-001: FireEye Detection Evasion and Whitelisting of Arbitrary Malware

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Message-ID: <56C1E334.4070004@bluefrostsecurity.de>
Date: Mon, 15 Feb 2016 15:39:48 +0100
From: Blue Frost Security Research Lab <research@...efrostsecurity.de>
To: fulldisclosure@...lists.org
Subject: [FD] BFS-SA-2016-001: FireEye Detection Evasion and Whitelisting of
 Arbitrary Malware

________________________________________________________________________________

Vendor:                 FireEye, https://www.fireeye.com
Affected Product:       FireEye FX, AX, NX, EX
Affected Version:       FX < 7.5.1, AX < 7.7.0, NX < 7.6.1, EX < 7.6.2
Severity:               High
Title:                  Detection Evasion and Whitelisting of Arbitrary Malware
________________________________________________________________________________

An analysis engine evasion was identified which allows an attacker to
completely bypass FireEye's virtualization-based dynamic analysis on Windows
and add arbitrary binaries to the internal white list of binaries for which
the analysis will be skipped until the white list entry is wiped after a day.

This effectively allows an attacker to simply whitelist a binary before using
it in a targeted attack without fear of detection.

FireEye has released software updates to address the issue. The full advisory
with technical details is available at the following link:

https://labs.bluefrostsecurity.de/advisories/bfs-sa-2016-001/
________________________________________________________________________________

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