Key metrics from the 1H 2021 Netscout Threat Intelligence Report
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India

The massive shift to online life triggered by the COVID-19 pandemic prompted record-breaking levels of innovation by threat actors, and NETSCOUT’s ATLAS Security Engineering and Response Team (ASERT) expects this long tail of attacker innovation to last well into 2021.

Bad actors launched approximately 5.4 million DDoS attacks in 1H 2021—yet another record-breaking number. In particular, attackers launched unprecedented numbers of DDoS attacks in the first quarter, boosting attack frequency by 20 percent over the same time period in 2020. Meanwhile, adversaries discovered or weaponized seven UDP reflection/amplification DDoS attack vectors and developed adaptive multivector attacks specifically tailored to exploit vulnerabilities of their targets. Vital components of the connectivity supply chain came under increased attack, while ransomware gangs added triple-extortion DDoS tactics to their repertoire and the Fancy Lazarus threat actor launched a new DDoS extortion campaign.

Max Multivector Attack

Max number of vectors seen in a single attack

21

Attack Vectors Used

1. CLDAP amplification
2. DNS
3. DNS amplification
4. ICMP
5. ISAKMP
6. L2TP amplification
7. MDNS amplification
8. Memcached amplification
9. NetBIOS amplification
10. NTP amplification
11. OpenVPN amplification
12. rpcbind amplification
13. SIP amplification
14. SNMP amplification
15. SSDP amplification
16. STUN amplification
17. TCP ACK
18. TCP RST
19. TCP SYN
20. TCP SYN/ACK amplification
21. Ubiquiti amplification

Top 5 Attack Vectors

Ts

TCP SYN

Number of Attacks

33,763

Dn

DNS amp

Number of Attacks

16,726

Ta

TCP ACK

Number of Attacks

14,307

Ds

DNS

Number of Attacks

13,707

Im

ICMP

Number of Attacks

10,034

Top Ten Vertical Industries Under Attack

The following industry chart shows the most targeted sectors in 1H 2021 by number of attacks.

Rank Vertical Frequency Max Attack Max Impact Average Duration
1
cell phone icon Wireless Telecommunications Carriers
26,296 112.28 Gbps 22.58 Mpps 349.4 Minutes
2
Wired Telecommunications Resellers icon Wired Telecommunications Carriers
3,906 79.73 Gbps 24.81 Mpps 127.6 Minutes
3
cloud icon with up arrow Data Processing, Hosting + Related Services
3,777 84.18 Gbps 29.72 Mpps 83.4 Minutes
4
shopping cart icon Electronic Shopping + Mail-Order Houses
2,384 42.81 Gbps 8.11 Mpps 163.8 Minutes
5
Telecomm Tower icon Other Telecommunications
862 27.38 Gbps 4.79 Mpps 87.2 Minutes
6
laptop icon Electronic Computer Manufacturing
611 46.00 Gbps 13.03 Mpps 56.8 Minutes
7
banking institution icon Investment Banking + Securities Dealing
277 1.10 Gbps 0.30 Mpps 377.2 Minutes
8
radio icon Internet Publishing, Broadcasting + Web Search Portals
252 1.44 Gbps 0.19 Mpps 38.7 Minutes
9
Document with PDF icon Software Publishers
155 18.36 Gbps 3.28 Mpps 104.4 Minutes
10
Lab Formula Beaker icon All Other Professional, Scientific + Technical Services
63 5.62 Gbps 1.33 Mpps 44.6 Minutes
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