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10 May 2021

Multiple high severity vulnerabilities discovered in the Exim mail server

Exim vulnerabilities could enable a malicious cyber actor to compromise vulnerable Exim servers. The ACSC strongly recommends applying available patches.

08 May 2021

Avaddon Ransomware

Increase in Avaddon ransomware attacks in Australia.

27 Apr 2021

Potential exploitation of Click Studio’s PasswordState software

On 24 April 2021, Australian software company Click Studios announced a compromise of the software update process for their enterprise password management software PasswordState, used by organisations in Australia and globally.

21 Apr 2021

Exploitation of Pulse Connect Secure Vulnerabilities

New advice for mitigating Pulse Connect Secure Virtual Private Network (VPN) vulnerabilities

15 Apr 2021

Exchange server critical vulnerabilities

On 2 March 2021 Microsoft released information regarding multiple exploits being used to compromise instances of Microsoft Exchange Server. Malicious actors are exploiting these vulnerabilities to compromise Microsoft Exchange servers exposed to the internet, enabling access to email accounts and to enable further compromise of the Exchange server and associated networks.

16 Feb 2021

Malware targeting Centreon software

ANSSI identifies campaign targeting Centreon system monitoring software

04 Feb 2021

SonicWall Breach

SonicWall identified an internal systems breach using a zero-day vulnerability within the SMA 100 series 10.x code.

25 Jan 2021

Potential SolarWinds Orion compromise

FireEye identifies global campaign leveraging malicious updates to SolarWinds software.

12 Nov 2020

SDBBot targeting health sector

The ACSC has observed increased targeting activity against the Australian health sector by actors using the SDBBot Remote Access Tool (RAT).

30 Oct 2020

Sustained targeting of the health sector

The Australian Signals Directorate’s Australian Cyber Security Centre has identified a sustained campaign by sophisticated cybercrime actors impacting the Australian health sector.

01 Oct 2020

2019-131a: Emotet malware campaign

The Australian Signals Directorate’s Australian Cyber Security Centre (ACSC) has observed an ongoing and widespread campaign of malicious emails designed to spread Emotet across a variety of sectors in the Australian economy, including critical infrastructure providers and government agencies.

22 Sep 2020

Netlogon elevation of privilege vulnerability (CVE-2020-1472)

The ACSC is aware of a recently disclosed critical vulnerability in Microsoft Active Directory Domain Controller systems that allows unauthenticated attackers to trivially access administrative credentials.

18 Sep 2020

Active exploitation of vulnerable MobileIron products

The ACSC is aware of active exploitation of vulnerabilities in multiple MobileIron products by malicious cyber actors, including sophisticated state-based actors.

16 Sep 2020

Copy-paste compromises

The Australian Government is aware of, and responding to, a sustained targeting of Australian governments and companies by a sophisticated state-based actor. The title ‘Copy-paste compromises’ is derived from the actor’s heavy use of tools copied almost identically from open source.

13 Aug 2020

Phone scams impersonating Australian businesses and government agencies

Cybercriminals are spoofing Australian mobile numbers and pretending to be from an Australian Government agency, delivery company or business, manipulating the individual to gain access to their device.

02 Aug 2020

Ransomware targeting Australian aged care and healthcare sectors

ACSC is aware of increasing targeting of healthcare, including hospitals and aged care, by ransomware campaigns undertaken by cyber criminals.

16 Jul 2020

Increasing reports of myGov-related SMS and email scams targeting Australians

Be on the lookout for myGov-related SMS and email scams asking you to verify your myGov details.

15 Jul 2020

Remote code execution vulnerability in Windows DNS (CVE-2020-1350)

On 14 July 2020, Microsoft acknowledged a critical remote code execution vulnerability in Windows Domain Name System (DNS), which could allow an adversary to run arbitrary code.

14 Jul 2020

Critical vulnerability for SAP NetWeaver Application Server (CVE-2020-6287)

On 13 July 2020 (United States EST), enterprise resource planning provider SAP released a security patches for a critical vulnerability affecting the Java component LM Configuration Wizard within the SAP NetWeaver Application Server.

22 May 2020

COVID-19 malicious cyber activity

Malicious cyber actors are actively targeting individuals and Australian organisations with COVID-19 related scams and phishing emails. These incidents are likely to increase in frequency and severity over the coming weeks and months. This is due, in part, to the ease in which existing scam emails and texts can be modified with a COVID-19 theme.

22 May 2020

2019-126: Vulnerable version of Telerik UI being actively exploited by APT actor

The Australian Cyber Security Centre (ACSC) has become aware that Advanced Persistent Threat (APT) actors have been scanning for and attempting exploitation against unpatched versions of Telerik UI for ASP.NET AJAX using publicly available exploits. Successful exploitation could allow an attacker to upload files to the vulnerable server to facilitate further compromise.

22 May 2020

Active exploitation of vulnerability in Microsoft Internet Information Services

The Australian Signals Directorate’s Australian Cyber Security Centre (ACSC) is aware that sophisticated actors are actively exploiting a deserialisation vulnerability existing in all versions of Microsoft’s Internet Information Services (IIS) using the .NET framework (.NET). The vulnerability exploits the service’s VIEWSTATE parameter to allow for remote code execution by unauthorised users.

20 May 2020

Summary of Tradecraft Trends for 2019-20

The Australian Cyber Security Centre (ACSC) investigated and responded to numerous cyber security incidents during 2019 and 2020 so far.

06 Feb 2020

2020-003: Mailto ransomware incidents

The Australian Signals Directorate’s Australian Cyber Security Centre (ACSC) is aware of recent ransomware incidents involving a ransomware tool known as ‘Mailto’ or ‘Kazakavkovkiz’. Mailto belongs to the KoKo ransomware family.

15 Jan 2020

2020-002: Critical vulnerabilities for Microsoft Windows

On 15 January 2020 (AEDT), Microsoft released security patches for three critical and one important vulnerabilities in the Microsoft Remote Desktop Client, Remote Desktop Gateway and the Windows operating system. The ACSC recommends that users of these products apply patches urgently to prevent malicious actors from using these vulnerabilities to compromise your network.

13 Jan 2020

Active exploitation of critical vulnerability in Citrix Application Delivery Controller and Citrix Gateway

The Australian Signals Directorate’s Australian Cyber Security Centre (ACSC) is aware of ongoing attempts to exploit a critical vulnerability in Citrix Application Delivery Controller (ADC) (formerly known as NetScaler ADC), Citrix Gateway (formerly known as NetScaler Gateway) and Citrix SD-WAN WANOP.

13 Dec 2019

Australia Post SMS scam targeting Australians

With millions of parcel deliveries expected around the country, Australia Post is seeing widespread scam text (SMS) messages being sent to people, using their brand.

05 Aug 2019

2019-130: Password spray attacks

The Australian Cyber Security Centre (ACSC) is aware of a high volume of ongoing password spray attacks targeting Australian organisations.

30 Jul 2019

ICS-CERT Alerts

Link to ICS-CERT alerts from the US Department of Homeland Security

03 Jul 2019

2019-009: Securing unprotected network and data services

The Australian Cyber Security Centre (ACSC), the cyber defensive component of the Australian Signals Directorate (ASD), has observed a large number of unprotected network and database/storage services hosted on Australian Internet Protocol (IP) address ranges.

06 Jun 2019

Microsoft Windows security vulnerability – ‘BlueKeep’ (CVE-2019-0708)

CVE-2019-0708, also known as ‘BlueKeep’ leaves users open to attack from malicious actors who can exploit a vulnerability via Remote Desktop Services (RDS) on legacy versions of the Windows operating system.

06 May 2019

Microsoft SharePoint CVE-2019-0604

The ACSC is aware of malicious cyber actors successfully exploiting a Microsoft SharePoint vulnerability in order to implant web shells on compromised hosts.

15 Mar 2019

773M accounts affected by 'Collection #1' breach

The Australian Cyber Security Centre (ACSC) is aware of a significant data breach affecting 773 million email addresses and usernames.

29 Sep 2018

Facebook security issue affects 50M user accounts

The ACSC is aware of a security issue affecting 50 million Facebook user accounts whereby a flaw in the 'View As' feature allowed attackers to steal Facebook access tokens, which could be used to take over user's accounts. Access tokens are the equivalent of digital keys that allow users to remain logged into Facebook.

01 Jul 2018

Vulnerability in the Drupal content management system

The ACSC has become aware of a critical vulnerability in the Drupal content management system. This potentially allows attackers to exploit multiple attack vectors on a Drupal site, which could result in the site being completely compromised.

25 May 2018

VPNFilter malware

Australian users need to be aware of VPNFilter malware.

17 Apr 2018

Routers targeted: Cisco Smart Install feature continues to be targeted by Russian state-sponsored actors

Russian state-sponsored actors are responsible for activity targeting Cisco devices using the Smart Install feature worldwide, including Australia.

15 Nov 2015

Web shells being used as attack vectors on networks

This alert highlights the frequent use of web shells as an exploitation vector. Web shells can be used to leverage unauthorised access and can lead to wider network compromise.