This analysis is part of an incident investigation led by the FortiGuard Incident Response Team.
Fortiguard Incident Response Team discovered malware that had been running on a compromised machine for several weeks. The threat actor had executed a batch of scripts and PowerShell to run the malware in a Windows process. Although obtaining the original malware executable was difficult, a memory dump of the running malware process and a full memory dump of the compromised machine (the “fullout” file, size 33GB) were successfully acquired.
Read more…
Source: Fortinet
Sign up for our Newsletter
The latest news and insights delivered right to your inbox.
Related:
- ScarCruft surveilling North Korean defectors and human rights activists
November 29, 2021
The ScarCruft group (also known as APT37 or Temp.Reaper) is a nation-state sponsored APT actor we first reported in 2016. ScarCruft is known to target North Korean defectors, journalists who cover North Korea-related news and government organizations related to the Korean Peninsula, between others. Recently, we were approached by a news organization with a request ...
- FBI: An APT Group Exploiting a 0-day in FatPipe WARP, MPVPN, and IPVPN Software
November 17, 2021
As of November 2021, FBI forensic analysis indicated exploitation of a 0-day vulnerability in the FatPipe MPVPN® device software1 going back to at least May 2021. The vulnerability allowed APT actors to gain access to an unrestricted file upload function to drop a webshell for exploitation activity with root access, leading to elevated privileges and ...
- ‘Trojan Source’ Hides Invisible Bugs in Source Code
November 1, 2021
Researchers have found a new way to encode potentially evil source code, such that human reviewers see a harmless version and compilers see the invisible, wicked version. Named “Trojan Source attacks,” the method “exploits subtleties in text-encoding standards such as Unicode to produce source code whose tokens are logically encoded in a different order from the ...
- TA505 Gang Is Back With Newly Polished FlawedGrace RAT
October 19, 2021
The TA505 cybercrime group is whirring its financial rip-off machinery back up, pelting malware at a range of industries in what was initially low-volume waves that researchers saw spiral up late last month. They do bad things, but they’re so tricky that tracking them is a ton of fun, said Sherrod DeGrippo, vice president, Threat Research ...
- PurpleFox Adds New Backdoor That Uses WebSockets
October 19, 2021
In September 2021, the Trend Micro Managed XDR (MDR) team looked into suspicious activity related to a PurpleFox operator. Our findings led us to investigate an updated PurpleFox arsenal, which included an added vulnerability (CVE-2021-1732) and optimized rootkit capabilities leveraged in their attacks. We also found a new backdoor written in .NET implanted during the intrusion, ...
- Case Study: From BazarLoader to Network Reconnaissance
October 18, 2021
BazarLoader is Windows-based malware spread through various methods involving email. These infections provide backdoor access that criminals use to determine whether the host is part of an Active Directory (AD) environment. If so, criminals deploy Cobalt Strike and perform reconnaissance to map the network. If the results indicate a high-value target, criminals attempt lateral movement ...