文章目录
安装
yum install clamav-server clamav-data clamav-update clamav-filesystem clamav clamav-scanner-systemd clamav-devel clamav-lib clamav-server-systemd
病毒库默认地址是/var/lib/clamav，可以在/etc/freshclam.conf设置。
配置
- 配置病毒库更新
vim /etc/freshclam.conf
取消注释
DatabaseDirectory /var/lib/clamav
UpdateLogFile /var/log/freshclam.log
LogFileMaxSize 2M
LogTime yes
PidFile /var/run/freshclam.pid
- 配置扫描
vim /etc/clamd.d/scan.conf
取消注释
LogFile /var/log/clamd.scan
LogFileMaxSize 2M
LogTime yes
PidFile /run/clamd.scan/clamd.pid
DatabaseDirectory /var/lib/clamav
TCPAddr 0.0.0.0
TCPSocket 3310
- 创建日志文件，这个日志文件对应clamdscan的扫描任务
touch /var/log/clamd.scan
chown clamscan:clamscan /var/log/clamd.scan
启动服务
- 自动更新
systemctl start clamav-freshclam.service
systemctl enable clamav-freshclam.service
systemctl status clamav-freshclam.service
- 手动更新
freshclam
- 可以下载数据文件到/var/lib/clamav目录下
wget http://database.clamav.net/main.cvd
wget http://database.clamav.net/daily.cvd
wget http://database.clamav.net/bytecode.cvd
- 启动clamd@scan扫描服务，服务启动不了的话，可以查看/var/log/clamd.scan
systemctl enable clamd@scan
systemctl start clamd@scan
systemctl status clamd@scan
clamscan命令
clamscan扫描不需要启动clamd服务
- clamscan -h查看命令
clamscan -h
Clam AntiVirus: Scanner 0.102.4
By The ClamAV Team: https://www.clamav.net/about.html#credits
(C) 2020 Cisco Systems, Inc.
clamscan [options] [file/directory/-]
--help -h Show this help
--version -V Print version number
--verbose -v Be verbose
--archive-verbose -a Show filenames inside scanned archives
--debug Enable libclamav's debug messages
--quiet Only output error messages
--stdout Write to stdout instead of stderr. Does not affect 'debug' messages.
--no-summary Disable summary at end of scanning
--infected -i Only print infected files
--suppress-ok-results -o Skip printing OK files
--bell Sound bell on virus detection
--tempdir=DIRECTORY Create temporary files in DIRECTORY
--leave-temps[=yes/no(*)] Do not remove temporary files
--gen-json[=yes/no(*)] Generate JSON description of scanned file(s). JSON will be printed and also-
dropped to the temp directory if --leave-temps is enabled.
--database=FILE/DIR -d FILE/DIR Load virus database from FILE or load all supported db files from DIR
--official-db-only[=yes/no(*)] Only load official signatures
--log=FILE -l FILE Save scan report to FILE
--recursive[=yes/no(*)] -r Scan subdirectories recursively
--allmatch[=yes/no(*)] -z Continue scanning within file after finding a match
--cross-fs[=yes(*)/no] Scan files and directories on other filesystems
--follow-dir-symlinks[=0/1(*)/2] Follow directory symlinks (0 = never, 1 = direct, 2 = always)
--follow-file-symlinks[=0/1(*)/2] Follow file symlinks (0 = never, 1 = direct, 2 = always)
--file-list=FILE -f FILE Scan files from FILE
--remove[=yes/no(*)] Remove infected files. Be careful!
--move=DIRECTORY Move infected files into DIRECTORY
--copy=DIRECTORY Copy infected files into DIRECTORY
--exclude=REGEX Don't scan file names matching REGEX
--exclude-dir=REGEX Don't scan directories matching REGEX
--include=REGEX Only scan file names matching REGEX
--include-dir=REGEX Only scan directories matching REGEX
--bytecode[=yes(*)/no] Load bytecode from the database
--bytecode-unsigned[=yes/no(*)] Load unsigned bytecode
--bytecode-timeout=N Set bytecode timeout (in milliseconds)
--statistics[=none(*)/bytecode/pcre] Collect and print execution statistics
--detect-pua[=yes/no(*)] Detect Possibly Unwanted Applications
--exclude-pua=CAT Skip PUA sigs of category CAT
--include-pua=CAT Load PUA sigs of category CAT
--detect-structured[=yes/no(*)] Detect structured data (SSN, Credit Card)
--structured-ssn-format=X SSN format (0=normal,1=stripped,2=both)
--structured-ssn-count=N Min SSN count to generate a detect
--structured-cc-count=N Min CC count to generate a detect
--scan-mail[=yes(*)/no] Scan mail files
--phishing-sigs[=yes(*)/no] Enable email signature-based phishing detection
--phishing-scan-urls[=yes(*)/no] Enable URL signature-based phishing detection
--heuristic-alerts[=yes(*)/no] Heuristic alerts
--heuristic-scan-precedence[=yes/no(*)] Stop scanning as soon as a heuristic match is found
--normalize[=yes(*)/no] Normalize html, script, and text files. Use normalize=no for yara compatibility
--scan-pe[=yes(*)/no] Scan PE files
--scan-elf[=yes(*)/no] Scan ELF files
--scan-ole2[=yes(*)/no] Scan OLE2 containers
--scan-pdf[=yes(*)/no] Scan PDF files
--scan-swf[=yes(*)/no] Scan SWF files
--scan-html[=yes(*)/no] Scan HTML files
--scan-xmldocs[=yes(*)/no] Scan xml-based document files
--scan-hwp3[=yes(*)/no] Scan HWP3 files
--scan-archive[=yes(*)/no] Scan archive files (supported by libclamav)
--alert-broken[=yes/no(*)] Alert on broken executable files (PE & ELF)
--alert-encrypted[=yes/no(*)] Alert on encrypted archives and documents
--alert-encrypted-archive[=yes/no(*)] Alert on encrypted archives
--alert-encrypted-doc[=yes/no(*)] Alert on encrypted documents
--alert-macros[=yes/no(*)] Alert on OLE2 files containing VBA macros
--alert-exceeds-max[=yes/no(*)] Alert on files that exceed max file size, max scan size, or max recursion limit
--alert-phishing-ssl[=yes/no(*)] Alert on emails containing SSL mismatches in URLs
--alert-phishing-cloak[=yes/no(*)] Alert on emails containing cloaked URLs
--alert-partition-intersection[=yes/no(*)] Alert on raw DMG image files containing partition intersections
--nocerts Disable authenticode certificate chain verification in PE files
--dumpcerts Dump authenticode certificate chain in PE files
--max-scantime=#n Scan time longer than this will be skipped and assumed clean
--max-filesize=#n Files larger than this will be skipped and assumed clean
--max-scansize=#n The maximum amount of data to scan for each container file (**)
--max-files=#n The maximum number of files to scan for each container file (**)
--max-recursion=#n Maximum archive recursion level for container file (**)
--max-dir-recursion=#n Maximum directory recursion level
--max-embeddedpe=#n Maximum size file to check for embedded PE
--max-htmlnormalize=#n Maximum size of HTML file to normalize
--max-htmlnotags=#n Maximum size of normalized HTML file to scan
--max-scriptnormalize=#n Maximum size of script file to normalize
--max-ziptypercg=#n Maximum size zip to type reanalyze
--max-partitions=#n Maximum number of partitions in disk image to be scanned
--max-iconspe=#n Maximum number of icons in PE file to be scanned
--max-rechwp3=#n Maximum recursive calls to HWP3 parsing function
--pcre-match-limit=#n Maximum calls to the PCRE match function.
--pcre-recmatch-limit=#n Maximum recursive calls to the PCRE match function.
--pcre-max-filesize=#n Maximum size file to perform PCRE subsig matching.
--disable-cache Disable caching and cache checks for hash sums of scanned files.
Pass in - as the filename for stdin.
(*) Default scan settings
(**) Certain files (e.g. documents, archives, etc.) may in turn contain other
files inside. The above options ensure safe processing of this kind of data.
clamdscan命令
需要启动clamd@scan服务
clamdscan -h
Clam AntiVirus: Daemon Client 0.102.4
By The ClamAV Team: https://www.clamav.net/about.html#credits
(C) 2020 Cisco Systems, Inc.
clamdscan [options] [file/directory/-]
--help -h Show this help
--version -V Print version number and exit
--verbose -v Be verbose
--quiet Be quiet, only output error messages
--stdout Write to stdout instead of stderr. Does not affect 'debug' messages.
(this help is always written to stdout)
--log=FILE -l FILE Save scan report in FILE
--file-list=FILE -f FILE Scan files from FILE
--remove Remove infected files. Be careful!
--move=DIRECTORY Move infected files into DIRECTORY
--copy=DIRECTORY Copy infected files into DIRECTORY
--config-file=FILE Read configuration from FILE.
--allmatch -z Continue scanning within file after finding a match.
--multiscan -m Force MULTISCAN mode
--infected -i Only print infected files
--no-summary Disable summary at end of scanning
--reload Request clamd to reload virus database
--fdpass Pass filedescriptor to clamd (useful if clamd is running as a different user)
--stream Force streaming files to clamd (for debugging and unit testing)
扫描
- 递归扫描，clamscan的扫描结果不带时间戳
clamscan –ri /home
- 递归扫描根目录，不输出summary，并将结果存储在/etc/clamscan.log
clamscan –ri --no-summary /home -l /etc/clamscan.log
-
clamdscan /home
-
clamdscan /home对应日志
