http://www.grnet.gr

GRNET CERT 2012by Alex Zaharis

Website: http://cert.grnet.grEmail: cert@grnet.gr Team: GRNET-CERTPhone: +30 210 7475718

Overview

• GRNET-CERT Info & Deliverables• GRNET-CERT Services• Workload Statistics• Case 1: Phishing Attack• Case 2: SQL Injection Attack• Case 3: Malware Analysis• Case 4: Anon• Tools of the Trade

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GNET-CERT AT A GLANCE

• Created in 2002.• National Point of contact for all Educational &

Research Institutes.• Protecting the Greek Critical Internet

Infrastructure.• Participating on National Cyber Defense

Committee

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Other Greek CERTs:• GR-NCERT• FORTHCERT• AUTH-CERT

GRNET-CERT Deliverables

• Create an Overview of the risks the use of Internet poses in GREECE.

• Through Communication with other CERTs create a CYBER DEFENCE Coordination Team that can handle any kind of Cyber / Electronic attack.

• Participated/Co-ordinated the National Cyber Defense Exercise 2011.

• TF–CERT members

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CERT Cooperation Plan

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XCERT

GRNETCERT

CERT

YCERT

Law Enforcement

incidents incidentsincidents

incidents

incidents

National Cyber Space

National Cyber Defense Committee

Foreign Cyber Space

CERTKnowledge Pool

GRNET-CERT SERVICES

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1. Issue Alerts & Warnings2. Incident Handling -Incident Analysis -Incident Response Coordination3. Vulnerability Handling -Vulnerability Analysis4. Artifact Handling -Artifact Analysis5. Forensics

Reactive Services

1. Security Announcements2. Technology Watch3. Security Audits & Assessments4. Development of Security Tools5. Intrusion Detection Services

Proactive Services

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Some Statistics• For 2012 (5 months)

-900+ Various Abuse Reports Mitigated

-500+ Infringement Notices Handled -397 Network Scans-22 DOS Attacks-20 DDOS Attacks-Over 20 Cases of Phishing / Defacing etc.-2 Malware Analysis (Trojan, Scareware)-1 Anonymous Attack-Vulnerability (SQLi,XSS) Warning issued for:http://eclass.aspete.gr

• For 2011 (last 3 months)-600+ Abuse Reports Mitigated-350+ Infringement Notices Handled-Vulnerability (SQLi,XSS) Warning issued for:http://labs.opengov.grhttp://www.presidency.gr/

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Various Abuse ReportsInfridgment NoticeDOSDDOSNetwork/Port Scan, Brute-force

SPAM MAILSSH Brute ForceREGBOTBADBOT

Website

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Cases

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ΙΚΑ Phishing

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• Scam email Received.• Attack Site detected & scanned.• Original Phishing Forms along with contact info

recovered. (emails used by attackers)• Police Authorities Informed.

Type Of Attack: Phishing

High Profile Warning issued

• Labs.opengov.gr SQLi on facebook module

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Type Of Attack: SQLi

Malware Analysis

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Type Of Attack: Scareware \ Malware

CONTACTING IP: 91.232.29.95 (Ukraine)http://91.232.29.95/?0bbccd2979886358e559cd8ebc45985d

Anonymous Attack

• DNS requests (ANY) για το isc.org• Source IP = Spoofed IPs., PORT 80 • Destination Ips = Ips του φοιτητικού DSL,PORT 53 (UDP). • Φοιτητικά DSL modems με ανοιχτό recursive nameserver (dnsmasq)

και forwarders αυτούς που έλαβαν από το PPP, δηλ. τους rns0.grnet.gr & rns1.grnet.gr

• Προωθούν το ίδιο query στους rns μας. Οι rns μας απαντούν στα modems, και κατόπιν οι dnsmasq των modems απαντούν στον αρχικό (spoofed) προορισμό.

• Η ιδιαιτερότητα εδώ είναι ότι το isc.org είναι από τις πρώτες DNSSEC-signed ζώνες, που σημαίνει πως η απάντηση στο αρχικό DNS query είναι μεγάλη (> 512 bytes), οπότε σύμφωνα με το πρωτόκολλο, κάνει upgrade σε EDNS, που είναι TCP. Αποτέλεσμα είναι, ότι όλες αυτές οι χιλιάδες διευθύνσεις του φοιτητικού, ανοίγουν TCP connection στην port 80 (HTTP) στα targeted hosts (δηλ. στις spoofed αυτές διευθύνσεις) και κατά συνέπεια κάνουν DoS

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Type Of Attack: Reflective Amplified DNS Spoofing Attack

Tools• Websites:

– https://apps.db.ripe.net/search/query.html#resultsAnchor– http://cqcounter.com/whois/– http://projecthoneypot.org/– http://www.phishtank.com/– http://www.exploit-db.com/– https://www.virustotal.com/– http://anubis.iseclab.org– http://www.iptrackeronline.com/header.php– http://www.liveipmap.com/

• Tools:– Netsparker, Acunetix, Metasploit – Wireshark, Burp Suite– Nmap, Zenmap– BackTrack (Various Tools)– Sqlmap, Havij– Vmware Workstation– Sysintelnals– FTK

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Questions?

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Personal Info:Name: Alex ZaharisEmail: azaharis@admin.grnet.gr Team: GRNET-CERTPhone: +30 210 7475718