February 3, 2022
[UPDATE] On February 4, 2022, Zimbra provided an update regarding this zero-day exploit vulnerability and reported that a hotfix for 8.8.15 P30 would be available on February 5, 2022. This vulnerability was later assigned CVE-2022-24682 and was fixed in version 8.8.15P30 Update 2 of Zimbra Collaboration Suite.…
The BlackBerry Research & Intelligence and Incident Response (IR) teams have found evidence correlating attacks by the Initial Access Broker (IAB) group Prophet Spider with exploitation of the Log4j vulnerability in VMware Horizon. This article highlights the recent indicators of compromise (IoCs) that we’ve observed.
Defenders concerned that they may have been a victim of these attacks can make use of these IoCs and detection methods to identify evidence of compromise within their environment.…
On November 11th, Google TAG published a blogpost about watering-hole attacks leading to exploits for the Safari web browser running on macOS. ESET researchers had been investigating this campaign the week before that publication, uncovering additional details about the targets and malware used to compromise its victims.…
We investigated the most recent activities of APT36, also known as Earth Karkaddan, a politically motivated advanced persistent threat (APT) group, and discuss its use of CapraRAT, an Android RAT with clear similarities in design to the group’s favored Windows malware, Crimson RAT.
APT36, also known as Earth Karkaddan, a politically motivated advanced persistent threat (APT) group, has historically targeted Indian military and diplomatic resources.…
Donot Team (also known as APT-C-35 and SectorE02) is a threat actor operating since at least 2016 and known for targeting organizations and individuals in South Asia with Windows and Android malware. A recent report by Amnesty International links the group’s malware to an Indian cybersecurity company that may be selling the spyware or offering a hackers-for-hire service to governments of the region.…
During the back half of 2021, INKY began detecting phishing emails that impersonated the United States Department of Labor (DoL). Eventually, the campaign grew to hundreds of instances.
INKY caught enough of these attempts to do a thorough analysis of the campaign, which is set out in this edition of Fresh Phish.…
At the end of 2021, we were made aware of a UEFI firmware-level compromise through logs from our Firmware Scanner, which has been integrated into Kaspersky products since the beginning of 2019. Further analysis has shown that a single component within the inspected firmware’s image was modified by attackers in a way that allowed them to intercept the original execution flow of the machine’s boot sequence and introduce a sophisticated infection chain.…
BlueNoroff is the name of an APT group coined by Kaspersky researchers while investigating the notorious attack on Bangladesh’s Central Bank back in 2016. A mysterious group with links to Lazarus and an unusual financial motivation for an APT. The group seems to work more like a unit within a larger formation of Lazarus attackers, with the ability to tap into its vast resources: be it malware implants, exploits, or infrastructure.…
Ryuk is a ransomware that encrypts a victim’s files and requests payment in Bitcoin cryptocurrency to release the keys used for encryption. Ryuk is used exclusively in targeted ransomware attacks.
Ryuk was first observed in August 2018 during a campaign that targeted several enterprises.…
Cuba ransomware is an older ransomware, that has recently undergone some development. The actors have incorporated the leaking of victim data to increase its impact and revenue, much like we have seen recently with other major ransomware campaigns.
In our analysis, we observed that the attackers had access to the network before the infection and were able to collect specific information in order to orchestrate the attack and have the greatest impact.…
Over the past year, we have seen ransomware attackers change the way they have responded to organizations that have either chosen to not pay the ransom or have recovered their data via some other means. At the end of the day, fighting ransomware has resulted in the bad actors’ loss of revenue.…
Babuk ransomware is a new ransomware threat discovered in 2021 that has impacted at least five big enterprises, with one already paying the criminals $85,000 after negotiations. As with other variants, this ransomware is deployed in the network of enterprises that the criminals carefully target and compromise.…