The following snort rule: alert tcp any any -> any 80 (priority:2; msg:"LOCAL Command access' content:"/command.exe"; nocase; sid:1000100; rev:1;) generated the following alert (Priority: 2) 01/20-21:02:80.509944 172.30.101.115:48447 -> 204.126.133.86 TCP TTL: 64 TOS:0XO ID:35360 IpLen:20 DgmLen:364 DF ***AP*** Seq: O×7455EBE4 Ack: 0×D723C219 Win: 0XE5 TcpLen: 32 TCP Options (3): => NOP NOP TS: 2515457 481426654 for the following packet data transacted: 3/01-11:25:22.199554 172.30.101.115:48447 -> 204.126.133.86:8 GET ../../../../Windows/command.exe?dir%20c:\Program%20Files HTTP/1.2 What is the source IP address? What signature rule/string pattern did the rule match to generate the alert? (hint: which rule's field is related to the string pattern?) What is the IP identification? What is the IP address of the web server?
The following snort rule: alert tcp any any -> any 80 (priority:2; msg:"LOCAL Command access' content:"/command.exe"; nocase; sid:1000100; rev:1;) generated the following alert (Priority: 2) 01/20-21:02:80.509944 172.30.101.115:48447 -> 204.126.133.86 TCP TTL: 64 TOS:0XO ID:35360 IpLen:20 DgmLen:364 DF ***AP*** Seq: O×7455EBE4 Ack: 0×D723C219 Win: 0XE5 TcpLen: 32 TCP Options (3): => NOP NOP TS: 2515457 481426654 for the following packet data transacted: 3/01-11:25:22.199554 172.30.101.115:48447 -> 204.126.133.86:8 GET ../../../../Windows/command.exe?dir%20c:\Program%20Files HTTP/1.2 What is the source IP address? What signature rule/string pattern did the rule match to generate the alert? (hint: which rule's field is related to the string pattern?) What is the IP identification? What is the IP address of the web server?
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
Related questions
Question

Transcribed Image Text:**Snort Rule and Alert Analysis**
The following snort rule:
```plaintext
alert tcp any any -> any 80 (priority:2; msg:"LOCAL Command access"; content:"/command.exe"; nocase; sid:1000100; rev:1;)
```
Generated the following alert:
- **Priority**: 2
- **Timestamp**: 01/20-21:02:80.509944
- **Source IP/Port**: 172.30.101.115:48447
- **Destination IP/Port**: 204.126.133.86:80
- **TCP TTL**: 64
- **TOS**: 0X0
- **ID**: 35360
- **IpLen**: 20
- **DgmLen**: 364
- **DF**: (Don't Fragment flag)
- **Sequence**: 0x7455EBE4
- **Acknowledgment**: 0xD723C219
- **Window**: 0xE5
- **TcpLen**: 32
- **TCP Options**: NOP NOP TS: 2515457 481426654
_For the following packet data transacted:_
```plaintext
3/01-11:25:22.199554 172.30.101.115:48447 -> 204.126.133.86:80
GET ../../../../Windows/command.exe?dir%20c:\Program%20Files HTTP/1.2
```
**Educational Questions:**
1. **What is the source IP address?**
<input type="text" placeholder="Your answer here">
2. **What signature rule/string pattern did the rule match to generate the alert? (hint: which rule's field is related to the string pattern?)**
<input type="text" placeholder="Your answer here">
3. **What is the IP identification?**
<input type="text" placeholder="Your answer here">
4. **What is the IP address of the web server?**
<input type="text" placeholder="Your answer here">
This exercise involves understanding network intrusion detection through interpreting Snort rules and alerts. It is crucial to identify key components such as source IP addresses, signature matches, and web server IP addresses.
Expert Solution

This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 2 steps

Recommended textbooks for you

Computer Networking: A Top-Down Approach (7th Edi…
Computer Engineering
ISBN:
9780133594140
Author:
James Kurose, Keith Ross
Publisher:
PEARSON

Computer Organization and Design MIPS Edition, Fi…
Computer Engineering
ISBN:
9780124077263
Author:
David A. Patterson, John L. Hennessy
Publisher:
Elsevier Science

Network+ Guide to Networks (MindTap Course List)
Computer Engineering
ISBN:
9781337569330
Author:
Jill West, Tamara Dean, Jean Andrews
Publisher:
Cengage Learning

Computer Networking: A Top-Down Approach (7th Edi…
Computer Engineering
ISBN:
9780133594140
Author:
James Kurose, Keith Ross
Publisher:
PEARSON

Computer Organization and Design MIPS Edition, Fi…
Computer Engineering
ISBN:
9780124077263
Author:
David A. Patterson, John L. Hennessy
Publisher:
Elsevier Science

Network+ Guide to Networks (MindTap Course List)
Computer Engineering
ISBN:
9781337569330
Author:
Jill West, Tamara Dean, Jean Andrews
Publisher:
Cengage Learning

Concepts of Database Management
Computer Engineering
ISBN:
9781337093422
Author:
Joy L. Starks, Philip J. Pratt, Mary Z. Last
Publisher:
Cengage Learning

Prelude to Programming
Computer Engineering
ISBN:
9780133750423
Author:
VENIT, Stewart
Publisher:
Pearson Education

Sc Business Data Communications and Networking, T…
Computer Engineering
ISBN:
9781119368830
Author:
FITZGERALD
Publisher:
WILEY