source: npl/mailserver/clamav_conf/clamd.conf

##
## Syn-3 clamd configuration
## Please read the clamd.conf(5) manual before editing this file.

# Uncomment this option to enable logging.
# LogFile must be writable for the user running daemon.
# A full path is required.
# Default: disabled
#LogFile /tmp/clamd.log

# By default the log file is locked for writing - the lock protects against
# running clamd multiple times (if want to run another clamd, please
# copy the configuration file, change the LogFile variable, and run
# the daemon with --config-file option).
# This option disables log file locking.
# Default: no
#LogFileUnlock yes

# Maximum size of the log file.
# Value of 0 disables the limit.
# You may use 'M' or 'm' for megabytes (1M = 1m = 1048576 bytes)
# and 'K' or 'k' for kilobytes (1K = 1k = 1024 bytes). To specify the size
# in bytes just don't use modifiers.
# Default: 1M
#LogFileMaxSize 2M

# Log time with each message.
# Default: no
#LogTime yes

# Also log clean files. Useful in debugging but drastically increases the
# log size.
# Default: no
#LogClean yes

# Use system logger (can work together with LogFile).
# Default: no
LogSyslog yes

# Specify the type of syslog messages - please refer to 'man syslog'
# for facility names.
# Default: LOG_LOCAL6
LogFacility LOG_MAIL

# Enable verbose logging.
# Default: no
LogVerbose yes

# This option allows you to save a process identifier of the listening
# daemon (main thread).
# Default: disabled
PidFile /var/run/clamav/clamd.pid

# Optional path to the global temporary directory.
# Default: system specific (usually /tmp or /var/tmp).
#TemporaryDirectory /var/tmp

# Path to the database directory.
# Default: hardcoded (depends on installation options)
#DatabaseDirectory /var/lib/clamav

# The daemon works in a local OR a network mode. Due to security reasons we
# recommend the local mode.

# Path to a local socket file the daemon will listen on.
# Default: disabled (must be specified by a user)
LocalSocket /var/run/clamav/clamd

# Remove stale socket after unclean shutdown.
# Default: yes
FixStaleSocket yes

# TCP port address.
# Default: no
#TCPSocket 3310

# TCP address.
# By default we bind to INADDR_ANY, probably not wise.
# Enable the following to provide some degree of protection
# from the outside world.
# Default: no
#TCPAddr 127.0.0.1

# Maximum length the queue of pending connections may grow to.
# Default: 15
#MaxConnectionQueueLength 30

# Clamd uses FTP-like protocol to receive data from remote clients.
# If you are using clamav-milter to balance load between remote clamd daemons
# on firewall servers you may need to tune the options below.

# Close the connection when the data size limit is exceeded.
# The value should match your MTA's limit for a maximum attachment size.
# Default: 10M
#StreamMaxLength 20M

# Limit port range.
# Default: 1024
#StreamMinPort 30000
# Default: 2048
#StreamMaxPort 32000

# Maximum number of threads running at the same time.
# Default: 10
#MaxThreads 20

# Waiting for data from a client socket will timeout after this time (seconds).
# Value of 0 disables the timeout.
# Default: 120
#ReadTimeout 300

# Waiting for a new job will timeout after this time (seconds).
# Default: 30
#IdleTimeout 60

# Don't scan files and directories matching regex
# This directive can be used multiple times
# Default: scan all
#ExcludePath ^/proc/
#ExcludePath ^/sys/

# Maximum depth directories are scanned at.
# Default: 15
#MaxDirectoryRecursion 20

# Follow directory symlinks.
# Default: no
#FollowDirectorySymlinks yes

# Follow regular file symlinks.
# Default: no
#FollowFileSymlinks yes

# Perform a database check.
# Default: 1800 (30 min)
#SelfCheck 600

# Execute a command when virus is found. In the command string %v will
# be replaced with the virus name.
# Default: no
#VirusEvent /usr/local/bin/send_sms 123456789 "VIRUS ALERT: %v"

# Run as another user (clamd must be started by root for this option to work)
# Default: don't drop privileges
User amavis

# Initialize supplementary group access (clamd must be started by root).
# Default: no
#AllowSupplementaryGroups no

# Stop daemon when libclamav reports out of memory condition.
ExitOnOOM yes

# Don't fork into background.
# Default: no
Foreground yes

# Enable debug messages in libclamav.
# Default: no
#Debug yes

# Do not remove temporary files (for debug purposes).
# Default: no
#LeaveTemporaryFiles yes

# Detect Possibly Unwanted Applications.
# Default: no
#EDWIN: Disabled at 28-03-2012, because of false positives with some pdf files.
DetectPUA no

# Exclude a specific PUA category. This directive can be used multiple times.
# See http://www.clamav.net/support/pua for the complete list of PUA
# categories.
# Default: Load all categories (if DetectPUA is activated)
#ExcludePUA NetTool
#ExcludePUA PWTool

# Only include a specific PUA category. This directive can be used multiple
# times.
# Default: Load all categories (if DetectPUA is activated)
#IncludePUA Spy
#IncludePUA Scanner
#IncludePUA RAT

# In some cases (eg. complex malware, exploits in graphic files, and others),
# ClamAV uses special algorithms to provide accurate detection. This option
# controls the algorithmic detection.
# Default: yes
AlgorithmicDetection yes


##
## Executable files
##

# PE stands for Portable Executable - it's an executable file format used
# in all 32 and 64-bit versions of Windows operating systems. This option allows
# ClamAV to perform a deeper analysis of executable files and it's also
# required for decompression of popular executable packers such as UPX, FSG,
# and Petite.
# Default: yes
ScanPE yes

# Executable and Linking Format is a standard format for UN*X executables.
# This option allows you to control the scanning of ELF files.
# Default: yes
ScanELF yes

# With this option clamav will try to detect broken executables (both PE and
# ELF) and mark them as Broken.Executable.
# Default: no
DetectBrokenExecutables yes


##
## Documents
##

# This option enables scanning of OLE2 files, such as Microsoft Office
# documents and .msi files.
# Default: yes
ScanOLE2 yes

# This option enables scanning within PDF files.
# Default: no
#ScanPDF yes


##
## Mail files
##

# Enable internal e-mail scanner.
# Default: yes
ScanMail yes

# If an email contains URLs ClamAV can download and scan them.
# WARNING: This option may open your system to a DoS attack.
#          Never use it on loaded servers.
# Default: no
#MailFollowURLs no

# Scan RFC1341 messages split over many emails.
# You will need to periodically clean up $TemporaryDirectory/clamav-partial directory.
# WARNING: This option may open your system to a DoS attack.
#          Never use it on loaded servers.
# Default: no
#ScanPartialMessages yes


# With this option enabled ClamAV will try to detect phishing attempts by using
# signatures.
# Default: yes
PhishingSignatures yes

# Scan URLs found in mails for phishing attempts using heuristics.
# Default: yes
PhishingScanURLs yes

# Always block SSL mismatches in URLs, even if the URL isn't in the database.
# This can lead to false positives.
#
# Default: no
#PhishingAlwaysBlockSSLMismatch no

# Always block cloaked URLs, even if URL isn't in database.
# This can lead to false positives.
#
# Default: no
#PhishingAlwaysBlockCloak no

# Allow heuristic match to take precedence.
# When enabled, if a heuristic scan (such as phishingScan) detects
# a possible virus/phish it will stop scan immediately. Recommended, saves CPU
# scan-time.
# When disabled, virus/phish detected by heuristic scans will be reported only at
# the end of a scan. If an archive contains both a heuristically detected
# virus/phish, and a real malware, the real malware will be reported
#
# Keep this disabled if you intend to handle "*.Heuristics.*" viruses 
# differently from "real" malware.
# If a non-heuristically-detected virus (signature-based) is found first, 
# the scan is interrupted immediately, regardless of this config option.
#
# Default: no
#HeuristicScanPrecedence yes

##
## Data Loss Prevention (DLP)
##

# Enable the DLP module
# Default: No
#StructuredDataDetection yes

# This option sets the lowest number of Credit Card numbers found in a file
# to generate a detect.
# Default: 3
#StructuredMinCreditCardCount 5

# This option sets the lowest number of Social Security Numbers found
# in a file to generate a detect.
# Default: 3
#StructuredMinSSNCount 5

# With this option enabled the DLP module will search for valid
# SSNs formatted as xxx-yy-zzzz
# Default: yes
#StructuredSSNFormatNormal yes

# With this option enabled the DLP module will search for valid
# SSNs formatted as xxxyyzzzz
# Default: no
#StructuredSSNFormatStripped yes


##
## HTML
##

# Perform HTML normalisation and decryption of MS Script Encoder code.
# Default: yes
ScanHTML yes


##
## Archives
##

# ClamAV can scan within archives and compressed files.
# Default: yes
ScanArchive yes

# Use slower but memory efficient decompression algorithm.
# only affects the bzip2 decompressor.
# Default: no
#ArchiveLimitMemoryUsage yes

# Mark encrypted archives as viruses (Encrypted.Zip, Encrypted.RAR).
# Default: no
#ArchiveBlockEncrypted no


##
## Limits
##

# The options below protect your system against Denial of Service attacks
# using archive bombs.

# This option sets the maximum amount of data to be scanned for each input file.
# Archives and other containers are recursively extracted and scanned up to this
# value.
# Value of 0 disables the limit
# Note: disabling this limit or setting it too high may result in severe damage
# to the system.
# Default: 100M
#MaxScanSize 150M

# Files larger than this limit won't be scanned. Affects the input file itself
# as well as files contained inside it (when the input file is an archive, a
# document or some other kind of container).
# Value of 0 disables the limit.
# Note: disabling this limit or setting it too high may result in severe damage
# to the system.
# Default: 25M
#MaxFileSize 30M

# Nested archives are scanned recursively, e.g. if a Zip archive contains a RAR
# file, all files within it will also be scanned. This options specifies how
# deeply the process should be continued.
# Note: disabling this limit or setting it too high may result in severe damage
# to the system.
# Value of 0 disables the limit.
# Default: 16
#MaxRecursion 10

# Number of files to be scanned within an archive, a document, or any other
# container file.
# Value of 0 disables the limit.
# Note: disabling this limit or setting it too high may result in severe damage
# to the system.
# Default: 10000
#MaxFiles 15000


##
## Clamuko settings
## WARNING: This is experimental software. It is very likely it will hang
##          up your system!!!
##

# Enable Clamuko. Dazuko (/dev/dazuko) must be configured and running.
# Default: no
#ClamukoScanOnAccess yes

# Set access mask for Clamuko.
# Default: no
#ClamukoScanOnOpen yes
#ClamukoScanOnClose yes
#ClamukoScanOnExec yes

# Set the include paths (all files inside them will be scanned). You can have
# multiple ClamukoIncludePath directives but each directory must be added
# in a seperate line.
# Default: disabled
#ClamukoIncludePath /home
#ClamukoIncludePath /students

# Set the exclude paths. All subdirectories are also excluded.
# Default: disabled
#ClamukoExcludePath /home/bofh

# Don't scan files larger than ClamukoMaxFileSize
# Value of 0 disables the limit.
# Default: 5M
#ClamukoMaxFileSize 10M


#No more then 10 seconds, otherwise we might get smtp timeouts
BytecodeTimeout 10000