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1. 20141116

2022-01-17 11:04:31  阅读:53  来源: 互联网

标签:what EK address What exploit 20141116 172.16


Malware-Traffic-Analysis.net - 2014-11-16 - Traffic analysis exercise

CyberDefenders – MyDFIR

并不是解题的思路历程,而是答案证据记录。

LEVEL 1 QUESTIONS:

What is the IP address of the Windows VM that gets infected?

根据经验捕捉的流量有公私网地址,所以应该位于网关位置,所以受感染的 vm 应该为私网地址,那么很有可能就是以下地址。

image-20211228103124207

根据通信数据大小来判断,很有可能是 172.16.165.165 这台。

此外,这些 ip 有的是主机,有的是 路由器/交换机,可以通过 nbns 协议进一步确认。nbns 协议特征是主机向 路由器/交换机 发送消息。

image-20211228105151205

因此,可以判断 172.16.165.165 为终端,其他两个为网络设备。再排查一下 172.16.165.254

image-20211228113116131

可以看到 172.16.165.254 为 dhcp 服务器。

故可以确定 受陷主机为 172.16.165.165

What is the host name of the Windows VM that gets infected?

image-20211228113835280

What is the MAC address of the infected VM?

image-20211228114010402

What is the IP address of the compromised web site?

将该页面的响应导出后,直接报毒。所以就是 该网站被攻陷

image-20211228145435140

What is the domain name of the compromised web site?

image-20211228145600526

What is the IP address and domain name that delivered the exploit kit and malware?

继续翻看请求记录,发现请求了一个 jar 包。

image-20211228142843897

下载下来后发现报毒。

image-20211228143313282

所以就是通过 该网站来投递攻击载荷。

image-20211228150241540

另一个方法就是把所有的 http 对象导出,然后用杀毒软件扫一下整个导出目录。。。

image-20211228151126594

通过 referer 头部定位到引用恶意域名的网站

image-20211228140458031

LEVEL 2 QUESTIONS:

What is the redirect URL that points to the exploit kit (EK) landing page?

第一个请求 stand. 这个域名的http header referer 字段

image-20211228151759856

Besided the landing page (which contains the CVE-2013-2551 IE exploit), what other exploit(s) sent by the EK?

image-20211228153005547

java 和 flash

How many times was the payload delivered?

3 次,按照顺序,分别是

image-20211228154046477

Submit the pcap to VirusTotal and find out what snort alerts triggered. What are the EK names are shown in the Suricata alerts?

将流量包提交到 virustotal,观察输出即可

image-20211228154535950

LEVEL 3 QUESTIONS:

Checking my website, what have I (and others) been calling this exploit kit?

这个我不会,,看答案是 RIG EK

What file or page from the compromised website has the malicious script with the URL for the redirect?

http://www.ciniholland.nl/ 该url 的响应包

image-20211228155648815

这也发现 wireshark 的一处问题,没有多个数据包data部分搜索功能。

其实可以将整个导出对象的文件夹添加到 vscode 中,再使用全局搜索功能

image-20211228161817625

Extract the exploit file(s). What is(are) the md5 file hash(es)?

image-20211228161141110

VirusTotal doesn't show all the VRT rules under the "Snort alerts" section for the pcap analysis. If you run your own version of Snort with the VRT ruleset as a registered user (or a subscriber), what VRT rules fire?

没尝试。。

标签:what,EK,address,What,exploit,20141116,172.16
来源: https://www.cnblogs.com/starrys/p/15812523.html

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