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Citrix Warns of Increase Password Spraying Attacks on NetScaler Appliances

These attacks are different from brute force attacks, company claims.


Citrix has addressed ‘password spraying’ attacks which have been targeted at NetScaler appliances.

Saying these are “distinct from brute force attacks” as instead of threat actors trying many passwords against a single account, they try a small set of common passwords against many accounts. This is done to avoid detection and account lockouts.

The Citrix and TIBCO Cloud Software Group said the increase in password spraying attacks directed at NetScaler appliances are characterised “by a sudden and significant increase in authentication attempts and failures, which trigger alerts across monitoring systems, including Gateway Insights and Active Directory logs.”


Dan Raywood
Dan Raywood Senior Editor SC Media UK

Dan Raywood is a B2B journalist with more than 20 years of experience, including covering cybersecurity for the past 16 years. He has extensively covered topics from Advanced Persistent Threats and nation-state hackers to major data breaches and regulatory changes.

He has spoken at events including 44CON, Infosecurity Europe, RANT Conference, BSides Scotland, Steelcon and ESET Security Days.

Outside work, Dan enjoys supporting Tottenham Hotspur, managing mischievous cats, and sampling craft beers.

Dan Raywood
Dan Raywood Senior Editor SC Media UK

Dan Raywood is a B2B journalist with more than 20 years of experience, including covering cybersecurity for the past 16 years. He has extensively covered topics from Advanced Persistent Threats and nation-state hackers to major data breaches and regulatory changes.

He has spoken at events including 44CON, Infosecurity Europe, RANT Conference, BSides Scotland, Steelcon and ESET Security Days.

Outside work, Dan enjoys supporting Tottenham Hotspur, managing mischievous cats, and sampling craft beers.

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