Melody是一款功能强大的透明互联网传感器,该工具专为威胁情报而设计,支持自定义标记规则,并且可以模拟存在安全漏洞的应用程序。该工具基于一款检测规则框架实现其功能,并允许广大研究人员标记感兴趣的数据包,以便对其进行进一步的威胁分析和监控。
下面列出的是Melody支持的一些核心功能:
1、数据捕捉 2、支持编写检测规则并标记特定的数据包,以进行大规模分析; 3、使用内置HTTP/S服务器模拟易受攻击的网站; 4、支持IPv4和IPv6上的主要互联网协议; 5、支持在最低配置的V*PS上持久运行; 6、无需进行大量配置即可使用; 7、独立模式:仅使用命令行接口配置Melody; 8、灵活性强,易于扩展功能; 9、静态编译的二进制文件; 10、Docker镜像持续更新;
1、从互联网噪声中提取趋势和模式; 2、索引恶意活动、攻击尝试和目标扫描器; 3、监控新出现的威胁; 4、密切关注特定的威胁;
1、建立一个背景噪声数据文档; 2、捕捉、标记和重放可疑数据流中的恶意数据包;
广大研究人员可以使用下列命令将该项目源码克隆至本地,并进行代码构建:
git clone https://github.com/bonjourmalware/melody /opt/melody
cd /opt/melody
make build我们还可以直接访问该项目的【Releases页面】下载该工具最新的预构建版本。下载完成后,我们需要执行下列命令进行工具的配置和使用:
make install # Set default outfacing interface
make cap # Set network capabilities to start Melody without elevated privileges
make certs # Make self signed certs for the HTTPS fileserver
make enable_all_rules # Enable the default rules
make service # Create a systemd service to restart the program automatically and launch it at startup
sudo systemctl stop melody # Stop the service while we're configuring it可以使用下列命令更新filter.bpf文件来过滤不需要的数据包:
sudo systemctl start melody # Start Melody
sudo systemctl status melody # Check that Melody is running日志文件将会存储在“/opt/melody/logs/melody.ndjson”路径中:
tail -f /opt/melody/logs/melody.ndjson # | jqmake certs # Make self signed certs for the HTTPS fileserver
make enable_all_rules # Enable the default rules
mkdir -p /opt/melody/logs
cd /opt/melody/
docker pull bonjourmalware/melody:latest
MELODY_CLI="" # Put your CLI options here. Example : export MELODY_CLI="-s -i 'lo' -F 'dst port 5555' -o 'server.http.port: 5555'"
docker run \
--net=host \
-e "MELODY_CLI=$MELODY_CLI" \
--mount type=bind,source="$(pwd)/filter.bpf",target=/app/filter.bpf,readonly \
--mount type=bind,source="$(pwd)/config.yml",target=/app/config.yml,readonly \
--mount type=bind,source="$(pwd)/var",target=/app/var,readonly \
--mount type=bind,source="$(pwd)/rules",target=/app/rules,readonly \
--mount type=bind,source="$(pwd)/logs",target=/app/logs/ \
bonjourmalware/melody参考样例如下:
CVE-2020-14882 Oracle Weblogic Server RCE:
layer: http
meta:
id: 3e1d86d8-fba6-4e15-8c74-941c3375fd3e
version: 1.0
author: BonjourMalware
status: stable
created: 2020/11/07
modified: 2020/20/07
description: "Checking or trying to exploit CVE-2020-14882"
references:
- "https://nvd.nist.gov/vuln/detail/CVE-2020-14882"
match:
http.uri:
startswith|any|nocase:
- "/console/css/"
- "/console/images"
contains|any|nocase:
- "console.portal"
- "consolejndi.portal?test_handle="
tags:
cve: "cve-2020-14882"
vendor: "oracle"
product: "weblogic"
impact: "rce"下面给出的日志样例。是一个通过IPv4发送的Netcat TCP数据包,内容如下:
{
"tcp": {
"window": 512,
"seq": 1906765553,
"ack": 2514263732,
"data_offset": 8,
"flags": "PA",
"urgent": 0,
"payload": {
"content": "I made a discovery today. I found a computer.\n",
"base64": "SSBtYWRlIGEgZGlzY292ZXJ5IHRvZGF5LiAgSSBmb3VuZCBhIGNvbXB1dGVyLgo=",
"truncated": false
}
},
"ip": {
"version": 4,
"ihl": 5,
"tos": 0,
"length": 99,
"id": 39114,
"fragbits": "DF",
"frag_offset": 0,
"ttl": 64,
"protocol": 6
},
"timestamp": "2020-11-16T15:50:01.277828+01:00",
"session": "bup9368o4skolf20rt8g",
"type": "tcp",
"src_ip": "127.0.0.1",
"dst_port": 1234,
"matches": {},
"inline_matches": [],
"embedded": {}
}

本项目的开发与发布遵循MIT开源许可证协议。
https://github.com/bonjourmalware/melody
https://bonjourmalware.github.io/melody/quickstart/