/usr/lib/python2.7/dist-packages/volatility/plugins/malware/ is in volatility 2.3.1-7.
This file is owned by root:root, with mode 0o755.
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/usr/lib/python2.7/dist-packages/volatility/plugins/malware/__init__.py
/usr/lib/python2.7/dist-packages/volatility/plugins/malware/apihooks.py
/usr/lib/python2.7/dist-packages/volatility/plugins/malware/callbacks.py
/usr/lib/python2.7/dist-packages/volatility/plugins/malware/cmdhistory.py
/usr/lib/python2.7/dist-packages/volatility/plugins/malware/devicetree.py
/usr/lib/python2.7/dist-packages/volatility/plugins/malware/idt.py
/usr/lib/python2.7/dist-packages/volatility/plugins/malware/impscan.py
/usr/lib/python2.7/dist-packages/volatility/plugins/malware/malfind.py
/usr/lib/python2.7/dist-packages/volatility/plugins/malware/psxview.py
/usr/lib/python2.7/dist-packages/volatility/plugins/malware/svcscan.py
/usr/lib/python2.7/dist-packages/volatility/plugins/malware/threads.py
/usr/lib/python2.7/dist-packages/volatility/plugins/malware/timers.py