Research

Twitter short URLs: statistics

As we discussed not so long ago, short URL services are becoming more and more popular among social networks. And the recent event when such a service got compromised highlighted the sensitivity of the problem.

We decided to take a look at just how popular each of these URL shortening services are on Twitter. So we’ve collected all the URLs from the public timeline and thought it would be nice to share the results with the world. The stats are based on data collected during a 24 hour period.

As you can see, more than half of the URLs posted on Twitter belong to bit.ly, making it the winning service with 53.75%. Tinyurl.com is in 2nd place, but with only 7.55%, there’s a big gap between this and 1st place. Twitpic.com accounts for 4.70% of all URLs tweeted, but as it isn’t actually a URL shortening service, just an image hosting website for Twitter users, we can’t in all good conscience count it among the top ranked services. So is.gd is the last in the top 3 – with just 1.73%.

What’s really worth noticing is that more than half of the URLs being tweeted every day are hosted by a single service, bit.ly. But with great power comes great responsibility – if this service got compromised, that would mean more than half of the URLs circulating every day on Twitter would be compromised.

As I have security in mind all the time, I would be a lot happier to see a more even spread across URL shortening services without such a clear leader.

Twitter short URLs: statistics

Your email address will not be published. Required fields are marked *

 

Reports

Lazarus targets defense industry with ThreatNeedle

In mid-2020, we realized that Lazarus was launching attacks on the defense industry using the ThreatNeedle cluster, an advanced malware cluster of Manuscrypt (a.k.a. NukeSped). While investigating this activity, we were able to observe the complete life cycle of an attack, uncovering more technical details and links to the group’s other campaigns.

Sunburst backdoor – code overlaps with Kazuar

While looking at the Sunburst backdoor, we discovered several features that overlap with a previously identified backdoor known as Kazuar. Our observations shows that Kazuar was used together with Turla tools during multiple breaches in past years.

Lazarus covets COVID-19-related intelligence

As the COVID-19 crisis grinds on, some threat actors are trying to speed up vaccine development by any means available. We have found evidence that the Lazarus group is going after intelligence that could help these efforts by attacking entities related to COVID-19 research.

Sunburst: connecting the dots in the DNS requests

We matched private and public DNS data for the SUNBURST-malware root C2 domain with the CNAME records, to identify who was targeted for further exploitation. In total, we analyzed 1722 DNS records, leading to 1026 unique target name parts and 964 unique UIDs.

Subscribe to our weekly e-mails

The hottest research right in your inbox