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#!/bin/sh
#################################################################################
#
# Lynis
# ------------------
#
# Copyright 2007-2013, Michael Boelen
# Copyright 2013-2016, CISOfy
#
# Website : https://cisofy.com
# Blog : http://linux-audit.com
# GitHub : https://github.com/CISOfy/lynis
#
# Lynis comes with ABSOLUTELY NO WARRANTY. This is free software, and you are
# welcome to redistribute it under the terms of the GNU General Public License.
# See LICENSE file for usage of this software.
#
#################################################################################
#
# Malware scanners
#
#################################################################################
#
InsertSection "Software: ${SECTION_MALWARE}"
#
#################################################################################
#
CLAMD_RUNNING=0
CLAMSCAN_INSTALLED=0
ESET_DAEMON_RUNNING=0
FRESHCLAM_DAEMON_RUNNING=0
MCAFEE_SCANNER_RUNNING=0
MALWARE_SCANNER_INSTALLED=0
SOPHOS_SCANNER_RUNNING=0
#
#################################################################################
#
# Test : MALW-3275
# Description : Check for installed tool (chkrootkit)
Register --test-no MALW-3275 --weight L --network NO --category security --description "Check for chkrootkit"
if [ ${SKIPTEST} -eq 0 ]; then
LogText "Test: checking presence chkrootkit"
if [ ! "${CHKROOTKITBINARY}" = "" ]; then
Display --indent 2 --text "- ${GEN_CHECKING} chkrootkit" --result "${STATUS_FOUND}" --color GREEN
LogText "Result: Found ${CHKROOTKITBINARY}"
MALWARE_SCANNER_INSTALLED=1
AddHP 2 2
Report "malware_scanner[]=chkrootkit"
else
LogText "Result: chkrootkit not found"
fi
fi
#
#################################################################################
#
# Test : MALW-3276
# Description : Check for installed tool (Rootkit Hunter)
Register --test-no MALW-3276 --weight L --network NO --category security --description "Check for Rootkit Hunter"
if [ ${SKIPTEST} -eq 0 ]; then
LogText "Test: checking presence Rootkit Hunter"
if [ ! "${RKHUNTERBINARY}" = "" ]; then
Display --indent 2 --text "- ${GEN_CHECKING} Rootkit Hunter" --result "${STATUS_FOUND}" --color GREEN
LogText "Result: Found ${RKHUNTERBINARY}"
MALWARE_SCANNER_INSTALLED=1
AddHP 2 2
Report "malware_scanner[]=rkhunter"
else
LogText "Result: Rootkit Hunter not found"
fi
fi
#
#################################################################################
#
# Test : MALW-3278
# Description : Check for installed tool (Linux Malware Detect or LMD)
Register --test-no MALW-3278 --weight L --network NO --category security --description "Check for LMD"
if [ ${SKIPTEST} -eq 0 ]; then
LogText "Test: checking presence LMD"
if [ ! "${LMDBINARY}" = "" ]; then
Display --indent 2 --text "- ${GEN_CHECKING} LMD (Linux Malware Detect)" --result "${STATUS_FOUND}" --color GREEN
LogText "Result: Found ${LMDBINARY}"
MALWARE_SCANNER_INSTALLED=1
AddHP 2 2
Report "malware_scanner[]=lmd"
else
LogText "Result: LMD not found"
fi
fi
#
#################################################################################
#
# Test : MALW-3280
# Description : Check if an anti-virus tool is installed
Register --test-no MALW-3280 --weight L --network NO --category security --description "Check if anti-virus tool is installed"
if [ ${SKIPTEST} -eq 0 ]; then
FOUND=0
# ESET security products
LogText "Test: checking process esets_daemon"
IsRunning esets_daemon
if [ ${RUNNING} -eq 1 ]; then
FOUND=1
Display --indent 2 --text "- ${GEN_CHECKING} ESET daemon" --result "${STATUS_FOUND}" --color GREEN
LogText "Result: found ESET security product"
ESET_DAEMON_RUNNING=1
MALWARE_SCANNER_INSTALLED=1
AddHP 2 2
Report "malware_scanner[]=eset"
fi
# McAfee products
LogText "Test: checking process cma or cmdagent (McAfee)"
# cma is too generic to match on, so we want to ensure that it is related to McAfee first
if [ -x /opt/McAfee/cma/bin/cma ]; then
IsRunning cma
if [ ${RUNNING} -eq 1 ]; then MCAFEE_SCANNER_RUNNING=1; fi
else
IsRunning cmdagent
if [ ${RUNNING} -eq 1 ]; then MCAFEE_SCANNER_RUNNING=1; fi
fi
if [ ${MCAFEE_SCANNER_RUNNING} -eq 1 ]; then
FOUND=1
Display --indent 2 --text "- ${GEN_CHECKING} McAfee" --result "${STATUS_FOUND}" --color GREEN
LogText "Result: Found McAfee"
MALWARE_SCANNER_INSTALLED=1
AddHP 2 2
Report "malware_scanner[]=mcafee"
fi
# Sophos savscand/SophosScanD
LogText "Test: checking process savscand"
IsRunning savscand
if [ ${RUNNING} -eq 1 ]; then
FOUND=1
SOPHOS_SCANNER_RUNNING=1
fi
LogText "Test: checking process SophosScanD"
IsRunning SophosScanD
if [ ${RUNNING} -eq 1 ]; then
FOUND=1
SOPHOS_SCANNER_RUNNING=1
fi
if [ ${SOPHOS_SCANNER_RUNNING} -eq 1 ]; then
Display --indent 2 --text "- ${GEN_CHECKING} Sophos" --result "${STATUS_FOUND}" --color GREEN
LogText "Result: Found Sophos"
MALWARE_SCANNER_INSTALLED=1
AddHP 2 2
Report "malware_scanner[]=sophos"
fi
if [ ${FOUND} -eq 0 ]; then
LogText "Result: no commercial anti-virus tools found"
AddHP 0 3
fi
fi
#
#################################################################################
#
# Test : MALW-3282
# Description : Check if clamscan is installed
Register --test-no MALW-3282 --weight L --network NO --category security --description "Check for clamscan"
if [ ${SKIPTEST} -eq 0 ]; then
LogText "Test: checking presence clamscan"
if [ ! "${CLAMSCANBINARY}" = "" ]; then
Display --indent 2 --text "- Checking ClamAV scanner" --result "${STATUS_FOUND}" --color GREEN
LogText "Result: Found ${CLAMSCANBINARY}"
MALWARE_SCANNER_INSTALLED=1
CLAMSCAN_INSTALLED=1
AddHP 2 2
else
LogText "Result: clamscan couldn't be found"
fi
fi
#
#################################################################################
#
# Test : MALW-3284
# Description : Check running clamd process
Register --test-no MALW-3284 --weight L --network NO --category security --description "Check for clamd"
if [ ${SKIPTEST} -eq 0 ]; then
LogText "Test: checking running ClamAV daemon (clamd)"
IsRunning clamd
if [ ${RUNNING} -eq 1 ]; then
Display --indent 2 --text "- ${GEN_CHECKING} ClamAV daemon" --result "${STATUS_FOUND}" --color GREEN
LogText "Result: found running clamd process"
MALWARE_SCANNER_INSTALLED=1
CLAMD_RUNNING=1
else
LogText "Result: clamd not running"
fi
fi
#
#################################################################################
#
# Test : MALW-3286
# Description : Check running freshclam if clamd process is running
if [ ${CLAMD_RUNNING} -eq 1 ]; then PREQS_MET="YES"; else PREQS_MET="NO"; fi
Register --test-no MALW-3286 --preqs-met ${PREQS_MET} --weight L --network NO --category security --description "Check for freshclam"
if [ ${SKIPTEST} -eq 0 ]; then
LogText "Test: checking running freshclam daemon"
IsRunning freshclam
if [ ${RUNNING} -eq 1 ]; then
FRESHCLAM_DAEMON_RUNNING=1
Display --indent 4 --text "- ${GEN_CHECKING} freshclam" --result "${STATUS_FOUND}" --color GREEN
LogText "Result: found running freshclam process"
AddHP 2 2
else
Display --indent 4 --text "- ${GEN_CHECKING} freshclam" --result "${STATUS_SUGGESTION}" --color YELLOW
LogText "Result: freshclam is not running"
ReportSuggestion ${TEST_NO} "Confirm that freshclam is properly configured and keeps updating the ClamAV database"
fi
fi
#
#################################################################################
#
# Test : MALW-3288
# Description : Check for ClamXav (Mac OS X)
if [ -d /Applications/ClamXav.app/Contents/Resources/ScanningEngine/bin/ ]; then PREQS_MET="YES"; else PREQS_MET="NO"; fi
Register --test-no MALW-3288 --preqs-met ${PREQS_MET} --weight L --network NO --category security --description "Check for ClamXav"
if [ ${SKIPTEST} -eq 0 ]; then
CLAMSCANBINARY=`ls /Applications/ClamXav.app/Contents/Resources/ScanningEngine/bin/ 2> /dev/null | grep 'clamscan'`
if [ ! "${CLAMSCANBINARY}" = "" ]; then
LogText "Result: Found ClamXav clamscan installed"
Display --indent 2 --text "- ${GEN_CHECKING} ClamXav AV scanner" --result "${STATUS_FOUND}" --color GREEN
MALWARE_SCANNER_INSTALLED=1
CLAMSCAN_INSTALLED=1
AddHP 3 3
else
LogText "Result: ClamXav malware scanner not found"
AddHP 0 3
fi
fi
#
#################################################################################
#
# Check if we found any of the ClamAV components
if [ ${CLAMSCAN_INSTALLED} -eq 1 -o ${CLAMD_RUNNING} -eq 1 -o ${FRESHCLAM_DAEMON_RUNNING} -eq 1 ]; then
Report "malware_scanner[]=clamav"
fi
#
#################################################################################
#
Report "malware_scanner_installed=${MALWARE_SCANNER_INSTALLED}"
WaitForKeyPress
#
#================================================================================
# Lynis - Security Auditing and System Hardening for Linux and UNIX - https://cisofy.com
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