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Diffstat (limited to 'meta-security/recipes-security/clamav/files/clamd.conf')
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1 files changed, 595 insertions, 0 deletions
diff --git a/meta-security/recipes-security/clamav/files/clamd.conf b/meta-security/recipes-security/clamav/files/clamd.conf new file mode 100644 index 000000000..045778506 --- /dev/null +++ b/meta-security/recipes-security/clamav/files/clamd.conf @@ -0,0 +1,595 @@ +# 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. If LogFileMaxSize is enabled, log +# rotation (the LogRotate option) will always be enabled. +# 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 + +# Enable log rotation. Always enabled when LogFileMaxSize is enabled. +# Default: no +#LogRotate yes + +# Log additional information about the infected file, such as its +# size and hash, together with the virus name. +ExtendedDetectionInfo yes + +# This option allows you to save a process identifier of the listening +# daemon (main thread). +# Default: disabled +PidFile /var/run/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 + +# Only load the official signatures published by the ClamAV project. +# Default: no +#OfficialDatabaseOnly no + +# The daemon can work in local mode, network mode or both. +# 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 /tmp/clamd.socket + +# Sets the group ownership on the unix socket. +# Default: disabled (the primary group of the user running clamd) +#LocalSocketGroup virusgroup + +# Sets the permissions on the unix socket to the specified mode. +# Default: disabled (socket is world accessible) +#LocalSocketMode 660 + +# 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. This option can be specified multiple +# times if you want to listen on multiple IPs. IPv6 is now supported. +# Default: no +#TCPAddr 127.0.0.1 + +# Maximum length the queue of pending connections may grow to. +# Default: 200 +#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: 25M +#StreamMaxLength 10M + +# 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). +# Default: 120 +#ReadTimeout 300 + +# This option specifies the time (in seconds) after which clamd should +# timeout if a client doesn't provide any initial command after connecting. +# Default: 5 +#CommandReadTimeout 5 + +# This option specifies how long to wait (in miliseconds) if the send buffer is full. +# Keep this value low to prevent clamd hanging +# +# Default: 500 +#SendBufTimeout 200 + +# Maximum number of queued items (including those being processed by MaxThreads threads) +# It is recommended to have this value at least twice MaxThreads if possible. +# WARNING: you shouldn't increase this too much to avoid running out of file descriptors, +# the following condition should hold: +# MaxThreads*MaxRecursion + (MaxQueue - MaxThreads) + 6< RLIMIT_NOFILE (usual max is 1024) +# +# Default: 100 +#MaxQueue 200 + +# 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 + +# Scan files and directories on other filesystems. +# Default: yes +#CrossFilesystems yes + +# Perform a database check. +# Default: 600 (10 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 clamav + +# 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 + +# Permit use of the ALLMATCHSCAN command. If set to no, clamd will reject +# any ALLMATCHSCAN command as invalid. +# Default: yes +#AllowAllMatchScan no + +# Detect Possibly Unwanted Applications. +# Default: no +#DetectPUA yes + +# Exclude a specific PUA category. This directive can be used multiple times. +# See https://github.com/vrtadmin/clamav-faq/blob/master/faq/faq-pua.md 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 + +# This option causes memory or nested map scans to dump the content to disk. +# If you turn on this option, more data is written to disk and is available +# when the LeaveTemporaryFiles option is enabled. +#ForceToDisk yes + +# This option allows you to disable the caching feature of the engine. By +# default, the engine will store an MD5 in a cache of any files that are +# not flagged as virus or that hit limits checks. Disabling the cache will +# have a negative performance impact on large scans. +# Default: no +#DisableCache 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. If you turn off this option, the original files will still be +# scanned, but without additional processing. +# Default: yes +#ScanPE yes + +# Certain PE files contain an authenticode signature. By default, we check +# the signature chain in the PE file against a database of trusted and +# revoked certificates if the file being scanned is marked as a virus. +# If any certificate in the chain validates against any trusted root, but +# does not match any revoked certificate, the file is marked as whitelisted. +# If the file does match a revoked certificate, the file is marked as virus. +# The following setting completely turns off authenticode verification. +# Default: no +#DisableCertCheck yes + +# Executable and Linking Format is a standard format for UN*X executables. +# This option allows you to control the scanning of ELF files. +# If you turn off this option, the original files will still be scanned, but +# without additional processing. +# 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. +# If you turn off this option, the original files will still be scanned, but +# without additional processing. +# Default: yes +#ScanOLE2 yes + +# With this option enabled OLE2 files with VBA macros, which were not +# detected by signatures will be marked as "Heuristics.OLE2.ContainsMacros". +# Default: no +#OLE2BlockMacros no + +# This option enables scanning within PDF files. +# If you turn off this option, the original files will still be scanned, but +# without decoding and additional processing. +# Default: yes +#ScanPDF yes + +# This option enables scanning within SWF files. +# If you turn off this option, the original files will still be scanned, but +# without decoding and additional processing. +# Default: yes +#ScanSWF yes + + +## +## Mail files +## + +# Enable internal e-mail scanner. +# If you turn off this option, the original files will still be scanned, but +# without parsing individual messages/attachments. +# Default: yes +#ScanMail yes + +# 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 + +# Detect partition intersections in raw disk images using heuristics. +# Default: no +#PartitionIntersection 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 +# If you turn off this option, the original files will still be scanned, but +# without additional processing. +#ScanHTML yes + + +## +## Archives +## + +# ClamAV can scan within archives and compressed files. +# If you turn off this option, the original files will still be scanned, but +# without unpacking and additional processing. +# Default: yes +#ScanArchive 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: setting this limit too high may result in severe damage to the system. +# 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 + +# Maximum size of a file to check for embedded PE. Files larger than this value +# will skip the additional analysis step. +# Note: disabling this limit or setting it too high may result in severe damage +# to the system. +# Default: 10M +#MaxEmbeddedPE 10M + +# Maximum size of a HTML file to normalize. HTML files larger than this value +# will not be normalized or scanned. +# Note: disabling this limit or setting it too high may result in severe damage +# to the system. +# Default: 10M +#MaxHTMLNormalize 10M + +# Maximum size of a normalized HTML file to scan. HTML files larger than this +# value after normalization will not be scanned. +# Note: disabling this limit or setting it too high may result in severe damage +# to the system. +# Default: 2M +#MaxHTMLNoTags 2M + +# Maximum size of a script file to normalize. Script content larger than this +# value will not be normalized or scanned. +# Note: disabling this limit or setting it too high may result in severe damage +# to the system. +# Default: 5M +#MaxScriptNormalize 5M + +# Maximum size of a ZIP file to reanalyze type recognition. ZIP files larger +# than this value will skip the step to potentially reanalyze as PE. +# Note: disabling this limit or setting it too high may result in severe damage +# to the system. +# Default: 1M +#MaxZipTypeRcg 1M + +# This option sets the maximum number of partitions of a raw disk image to be scanned. +# Raw disk images with more partitions than this value will have up to the value number +# partitions scanned. Negative values are not allowed. +# Note: setting this limit too high may result in severe damage or impact performance. +# Default: 50 +#MaxPartitions 128 + +# This option sets the maximum number of icons within a PE to be scanned. +# PE files with more icons than this value will have up to the value number icons scanned. +# Negative values are not allowed. +# WARNING: setting this limit too high may result in severe damage or impact performance. +# Default: 100 +#MaxIconsPE 200 + +## +## On-access Scan Settings +## + +# Enable on-access scanning. Currently, this is supported via fanotify. +# Clamuko/Dazuko support has been deprecated. +# Default: no +#ScanOnAccess yes + +# Don't scan files larger than OnAccessMaxFileSize +# Value of 0 disables the limit. +# Default: 5M +#OnAccessMaxFileSize 10M + +# Set the include paths (all files inside them will be scanned). You can have +# multiple OnAccessIncludePath directives but each directory must be added +# in a separate line. (On-access scan only) +# Default: disabled +#OnAccessIncludePath /home +#OnAccessIncludePath /students + +# Set the exclude paths. All subdirectories are also excluded. +# (On-access scan only) +# Default: disabled +#OnAccessExcludePath /home/bofh + +# With this option you can whitelist specific UIDs. Processes with these UIDs +# will be able to access all files. +# This option can be used multiple times (one per line). +# Default: disabled +#OnAccessExcludeUID 0 + + +## +## Bytecode +## + +# With this option enabled ClamAV will load bytecode from the database. +# It is highly recommended you keep this option on, otherwise you'll miss detections for many new viruses. +# Default: yes +#Bytecode yes + +# Set bytecode security level. +# Possible values: +# None - no security at all, meant for debugging. DO NOT USE THIS ON PRODUCTION SYSTEMS +# This value is only available if clamav was built with --enable-debug! +# TrustSigned - trust bytecode loaded from signed .c[lv]d files, +# insert runtime safety checks for bytecode loaded from other sources +# Paranoid - don't trust any bytecode, insert runtime checks for all +# Recommended: TrustSigned, because bytecode in .cvd files already has these checks +# Note that by default only signed bytecode is loaded, currently you can only +# load unsigned bytecode in --enable-debug mode. +# +# Default: TrustSigned +#BytecodeSecurity TrustSigned + +# Set bytecode timeout in miliseconds. +# +# Default: 5000 +# BytecodeTimeout 1000 + +## +## Statistics gathering and submitting +## + +# Enable statistical reporting. +# Default: no +#StatsEnabled yes + +# Disable submission of individual PE sections for files flagged as malware. +# Default: no +#StatsPEDisabled yes + +# HostID in the form of an UUID to use when submitting statistical information. +# Default: auto +#StatsHostID auto + +# Time in seconds to wait for the stats server to come back with a response +# Default: 10 +#StatsTimeout 10 |