Threats Tagged 'remote access'

In July 2026, phishing campaigns targeted organizations across multiple industries by distributing a masqueraded MSP360 Remote Monitoring and Management installer through meeting invitations, PDF-themed lures, and software update prompts. Once executed, the legitimate MSP360 installer established remote management access on affected devices, providing threat actors with an initial foothold using trusted administrative software. The MSP360 deployment was then used to download and install a ConnectWise ScreenConnect client, creating a secondary remote-access channel for redundant access to compromised systems. Following access establishment, threat actors deployed additional tools and conducted post-compromise activity, including information collection and credential-access operations. The campaigns utilized multiple delivery mechanisms including actor-controlled domains, compromised websites, and legitimate cloud services such as Amazon S3, Cloudflare R2, Dropbox, GitLab, and Supabase.

A network of fraudulent websites branded as SysScan uses fake security scans with Microsoft logos to deceive victims into uninstalling legitimate antivirus software. These sites run fabricated security checks that always fail, falsely claiming Windows no longer supports third-party antivirus. Victims are tricked into submitting personal, banking, and remote-access information through forms that send data to Telegram. Afterward, they receive calls from scammers posing as refund managers who exploit the lack of security protections. The campaign targets both consumer and enterprise users and shows signs of AI-generated code.

A sophisticated phishing campaign has been identified where attackers impersonate employees of a US company, sending emails that claim to contain transaction receipts. Recipients are urged to verify fund deposits by opening an attached PDF file. The malicious PDF displays a fake Adobe Flash Player update prompt, which when clicked, downloads a VBS script. This script executes with administrator privileges, displays a decoy payment receipt document, and silently installs ScreenConnect remote management software via an MSI package. The installation establishes persistent remote access to the compromised system, enabling attackers to execute commands, transfer files, and deploy additional payloads using legitimate administrative tools in a Living-off-the-Land attack technique.

An authentication bypass vulnerability, CVE-2026-18577, affecting N-able N-central Remote Monitoring and Management platform has been actively exploited since August 1, 2026. This vulnerability emerged after an incomplete fix for a previous authentication bypass issue CVE-2026-18556. The flaw allows remote unauthenticated attackers to bypass authentication mechanisms and gain administrative control over vulnerable N-central servers. Attackers have exploited this vulnerability to leverage the platform's Take Control functionality for remote access to managed endpoints and deployed Cloudflare Tunnel (cloudflared) to establish persistent remote access. Given that N-central is widely used by managed service providers and enterprise IT teams with extensive administrative privileges, successful compromise provides attackers an efficient pathway to compromise downstream managed systems. CISA added this vulnerability to its Known Exploited Vulnerability catalog on August 3, 2026.

Cybercriminals are conducting phishing campaigns by hosting malicious pages on Vercel, a legitimate website hosting platform. The attack involves sending phishing emails with links to fake Adobe PDF viewer pages that prompt users to download executable files disguised as documents. The malware, distributed as Invoice06092025.exe.bin, automatically installs LogMeIn remote access software upon execution, enabling attackers to remotely control compromised machines. Over a two-month period, more than 28 distinct campaigns have been observed targeting over 1,271 users. The attackers leverage trusted platforms to disguise their malicious activity, making detection more challenging and increasing the likelihood of successful compromise.

An investigation revealed a malicious email campaign directing victims to download a ZIP file from MediaFire. The infection chain began with a Python setup executable (Setu.exe) that side-loaded a malicious 400 MB python37.dll containing repeated byte padding. The DLL performed process injection into dllhost.exe, establishing communication with a C2 server at 138.124.186.2:7000. The threat actor deployed three persistence mechanisms: a PowerShell-based path, a fake EdgeUpdate Python executable with scheduled task, and NetSupport RMM as a third access method. The analysis highlights the importance of comparing file timestamps during triage to identify malicious artifacts within compressed archives.

OnyxC2 emerged in early 2026 as a malware-as-a-service stealer sold on cybercrime networks for $250 monthly. The platform includes a web panel, payload builder, and tiered pricing structure with refund guarantees. Written in C++ with assembly for direct syscalls, it targets approximately 210 applications across nine categories: 45 browsers, 109 extensions including 2FA tools, 5 password managers, 17 cryptocurrency wallets, 11 FTP clients, 5 email clients, and VPN/messaging applications. The stealer achieves 99% detection evasion through mutated builds and delivers via DLL sideloading using signed binaries. Higher tiers unlock remote access capabilities including HVNC, LSASS dumping, reverse SOCKS5 proxy, keylogging, and reverse shell. Distribution occurs through fake installers delivered as password-protected archives, with C2 communication over Cloudflare-fronted HTTPS to akmuniverstall.top.

BTMOB is an Android remote access trojan that evolved from SpySolr malware and poses significant threats beyond traditional banking trojans. The malware combines phishing-led delivery with an APK builder interface that enables rapid payload generation without coding skills. Distributed through fake app stores impersonating streaming services, cryptocurrency platforms, and government agencies, BTMOB abuses Android Accessibility Services to gain elevated permissions. Marketed as malware-as-a-service with a reported $5,000 lifetime license, it provides adversaries with capabilities to exfiltrate sensitive data, capture screenshots, record device activity, and establish remote control. The tool's customizable phishing lures have been adapted for specific regions, including campaigns impersonating Argentine tax authorities, making it a rapidly evolving threat with global reach.

MediumMalwareArgentinaBrazil#android rat#latin america#phishing campaigns

Beginning in late September 2025, multiple affected hosts were observed making requests to domains impersonating content delivery networks (CDNs), including infrastructure masquerading as Yahoo- and Apple-affiliated services. Across these cases, Darktrace identified a consistent behavioral execution pattern: the retrieval of legitimate binaries alongside malicious Dynamic Link Libraries (DLLs), enabling sideloading and execution of a modular .NET-based Remote Access Trojan (RAT) framework.

Attackers are leveraging the trusted reputation of Foxit PDF Reader, used by over 650 million people, to distribute malicious installers disguised as legitimate software. Rather than exploiting vulnerabilities, threat actors impersonate the vendor through fake installers with document-themed filenames that bypass user suspicion. When executed, these files display decoy passport images while downloading malicious MSI packages that deploy UltraVNC remote access tools disguised as GPU drivers. The attack establishes persistence through registry modifications and firewall exceptions, connecting to attacker-controlled infrastructure for complete remote system control. Telemetry indicates broad distribution across Germany, the United States, the United Kingdom, and Ukraine. This campaign demonstrates how brand impersonation combined with social engineering proves more effective than technical exploits, relying on user trust and behavioral patterns rather than software vulnerabilities.

MediumMalwareGermanyUnited StatesUnited Kingdom+1#brand abuse#document decoy#ultravnc