Download Kavach Authentication App !FULL!

To use the app, you need to contact your IT admin or support for more instructions on support and activation. The app works with Kavach Authentication Server in the background and supports multiple authentication features such as OTP and one-click login. It is important to note that this app only works with Kavach Security Server as the authentication server.

In this blog, we will describe how this group abuses Google advertisements for the purpose of malvertising to distribute backdoored versions of Kavach multi-authentication (MFA) applications. We will shed light on the complete details of the attack chain that have not been previously shared in the public domain. This threat group has also conducted very low-volume credential harvesting attacks masquerading as official Indian government websites, and luring unsuspecting users to enter their credentials.

Download Kavach Authentication App

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Figure 1 illustrates the end-to-end attack-chain of the distribution of backdoored Kavach multi-factor authentication (MFA) applications. Each part of this attack-chain is explained in more details in the later sections of the blog.

The malvertising aspect of APT-36 group has not been previously documented, so in this blog we will shed some light on how the threat actor lures Indian government users to download backdoored Kavach multi-factor authentication (MFA) applications.

To understand this better, we took snapshot of this website at different points of time in 2022. By leveraging the web archive feature, it can be seen in Figure 6 that in May 2022, the download link for Kavach on this app store pointed to kavach-app[.]com (which is a confirmed attacker-registered domain used in the campaign).

As mentioned above in the distribution mechanism section, this threat actor uses various malvertising methods to lure unsuspecting Indian government employees to download a backdoored version of the Kavach multi-factor authentication (MFA) application.

Transparent Tribe used the Kavach authentication tool as a cover to deliver the Poseidon payload. Kavach is a two-factor authentication (2FA) solution provided by the Indian government for secure access to their email services. Transparent Tribe created a backdoored version of Kavach to target Linux users working for Indian government agencies. When a user interacts with the malicious version of Kavach, the genuine login page is displayed to distract them. Meanwhile, the payload is downloaded in the background, compromising the user's system.

Malvertising

The malvertising aspect of APT-36 group has not been previously documented, so in this blog Analysts will shed some light on how the threat actor lures Indian government users to download backdoored Kavach multi-factor authentication (MFA) applications.

A new campaign from the hacking group tracked as APT36 has been discovered using new custom malware and entry vectors in attacks against the Indian government. The most interesting aspect of the new campaign is the use of laced Kavach authentication apps targeting employees of the Indian government. Kavach Authentication is a multi-factor authentication app used by the military and other government agencies to access critical IT systems such as email services or databases. Victims were visiting counterfeit websites that are clones of legitimate Indian government websites and downloading a copy of a legitimate Kavach installer laced with a malicious payload that automatically initiates the infection process with the threat actor's malware of choice.

British-based cybersecurity vendor Sophos warned that a recently patched Sophos Firewall bug allowing remote code execution (RCE) is now actively exploited in attacks. The security flaw is tracked as CVE-2022-1040, and it received a critical severity rating with a 9.8/10 CVSS base score. It enables remote attackers to bypass authentication via the firewall's User Portal or Webadmin interface and execute arbitrary code. To address the critical bug, Sophos released hotfixes that should be automatically deployed to all vulnerable devices since the 'Allow automatic installation of hotfixes' feature is enabled by default. For these customers and those who have disabled automatic updates, there's also a workaround requiring them to secure the User Portal and Webadmin interfaces by restricting external access.

I have tried put in apt config Acquire::http::proxy, and in Network>Network proxy with and without user:password@server:port and using environment variables http_proxy and https_proxy. Nothing seems to work, not even a single proxy authentication popup window.

In the dash button, select the "Network" option. In the network configuration screen you should select "network proxy" > "manual", type your proxy data and finally "Apply to all system". If authentication is required, the login screen will appear.

I have the app deployed on the play store. The SHA1 and SHA256 are added in the firebase project settings. I'm using phone authentication to receive the OTP for the app. The message comes in the following format:

In an attempt to make KYC norms business and user friendly, the videobased customer identification process (V-CIP) has been introduced for new and existing customers for updates, along with conversion of limited KYC accounts to full KYC accounts based on Aadhar e-authentication, use of a centralised KYC identifier for document submissions and promotion of the use of digital channels for updating KYC details. No punitive action will be taken for customers whose KYC is due/pending until 31 December 2021 (except for some special cases). 006ab0faaa