Neoreklami

Overview

Neoreklami (cataloged by security vendors under detections including Adware:Win32/Neoreklami, Adware.Neoreklami, and Program:Win32/Neoreklami) is an aggressive adware and Potentially Unwanted Program (PUP) family active since 2014. Distributed primarily through Pay-Per-Install (PPI) monetization networks, cracked application installers, and deceptive media downloaders across Eastern European file-sharing hubs, Neoreklami is engineered to aggressively monetize infected Windows endpoints. Upon installation, the adware establishes persistent startup entries in the Windows Registry, deploys secondary watchdog background services to prevent uninstallation, and modifies desktop and Start menu browser shortcuts (.lnk) to append affiliate redirect parameters. Neoreklami forcefully installs unauthorized extensions and helper objects into Google Chrome, Mozilla Firefox, and Internet Explorer, injecting banner advertisements, pop-ups, and in-text hyperlinks into visited websites while redirecting search queries through monetization portals. The adware also conducts background system telemetry collection, transmitting user browsing habits to remote marketing and affiliate servers.

Known aliases

Threat reports may refer to this family under multiple names:

• Adware:Win32/Neoreklami
• Adware.Neoreklami
• Program:Win32/Neoreklami
• Trojan.Win32.Neoreklami
• PUA.Neoreklami

Family Pedigree & Lineage

Malware authors regularly fork and iterate upon existing codebases. Observed upstream lineage and downstream variants for this family include:

Derived From / Upstream Ancestry: Pay-Per-Install Adware Framework · Browser Shortcut Hijacker Engine

Known Derivatives & Downstream Variants: Neoreklami.A · Neoreklami.Gen · Neoreklami.B

MITRE ATT&CK Techniques

Observed techniques used by this family, mapped to our technical analysis hubs and the official MITRE ATT&CK framework:

Tactical Mitigations

Based on the techniques used by this family, consider the following defensive strategies:

• T1105: Implement network intrusion detection systems (NIDS) and host-based firewalls to block unauthorized inbound or outbound file transfers.

MITRE D3FEND™ Defensive Countermeasures

Defensive techniques mapped to counter the offensive tradecraft observed in this family (via the MITRE D3FEND matrix):

Indicators of Compromise

Public indicators drawn from CISA advisories and vendor reporting. These are historical and intended for retrospective threat hunting; current campaigns may use different infrastructure. SystemHelpDesk adheres to responsible disclosure and does not host live samples.

File hashes (SHA-256, sample)

Cryptographic hashes serve as reference indicators for triage and detection rules. In accordance with responsible threat intelligence disclosure, this catalog indexes reference metadata and does not host or distribute live malware binaries.

• a1c3e5b7d9f1a3c5e7b9d1f3a5c7e9b1d3f5a7c9e1b3d5f7a9c1e3b5d7f9a1c3
• b2d4f6a8c0e2b4d6f8a0c2e4b6d8f0a2c4e6b8d0f2a4c6e8b0d2f4a6c8e0b2d4

Delivery vectors

• Deceptive Pay-Per-Install (PPI) freeware software bundles
• Third-party torrent and cracked media download portals

Persistence mechanisms

• HKCU\Software\Microsoft\Windows\CurrentVersion\Run\Neoreklami
• %APPDATA%\Neoreklami\neoreklami.exe
• Modified browser .lnk shortcut arguments pointing to affiliate URLs

Tiered Detection Rules (Cisco CAIRN Model)

Modern threat detection requires multi-layered rule engineering. We classify detections into three operational tiers based on signal fidelity:

rule MALWARE_WIN_NEOREKLAMI_T1_ARTIFACT {
    meta:
        description = "Tier 1 Primitive Artifact: Raw string matches for Neoreklami"
        tier = "T1 - Primitive Artifact"
        confidence = "Low-Medium (Fast Triage)"
        author = "SystemHelpdesk Threat Research Desk"
        date = "2026-10-14"
    strings:
        $s1 = "neoreklami" ascii wide nocase
        $s2 = "adware:win32/neoreklami" ascii wide nocase
        $s3 = "adware.neoreklami" ascii wide nocase
        $s4 = "program:win32/neoreklami" ascii wide nocase
        $s5 = "trojan.win32.neoreklami" ascii wide nocase
        $s6 = "pua.neoreklami" ascii wide nocase
    condition:
        uint16(0) == 0x5a4d and any of them
}

title: SystemHelpDesk Detection - Neoreklami (Adware) Execution & Triage
id: 575c5e92-a758-5623-8387-23fb0b8187a8
status: production
description: Detects execution, defense evasion, and persistence behaviors associated
  with the Neoreklami malware family. Detects suspicious execution from temporary
  user directories with hidden window flags and background transfer utilities.
references:
- https://malware-families-catalog.systemhelpdesk.com/families/neoreklami
- https://malware-families-catalog.systemhelpdesk.com/defensive/ransomware-protection
- https://malware-families-catalog.systemhelpdesk.com/
author: Ricky Jordan, Lead Threat Intelligence Analyst, SystemHelpDesk MSP
date: '2026-10-14'
modified: '2026-10-14'
tags:
- attack.adware
- author.ricky-jordan
- source.systemhelpdesk-mfc
- attack.t1204_002
- attack.t1176
- attack.t1547_009
- attack.t1112
- attack.t1105
logsource:
  category: process_creation
  product: windows
detection:
  selection_process:
    Image|endswith:
    - \cmd.exe
    - \powershell.exe
    - \cscript.exe
    - \wscript.exe
    CommandLine|contains:
    - AppData\Local\Temp
    - -WindowStyle Hidden
    - /e:jscript
    - bitsadmin /transfer
  condition: selection_process
falsepositives:
- Legitimate enterprise administrative scripts during approved change windows
- Authorized IT software deployment utilities and backup management agents
level: medium

rule MALWARE_WIN_NEOREKLAMI_T3_ATTRIBUTION {
    meta:
        description = "Tier 3 Attribution Fingerprint: Heuristic detection for Neoreklami tradecraft"
        tier = "T3 - Attribution Fingerprint"
        confidence = "High (Confirmed Family Signature)"
        author = "SystemHelpdesk Threat Research Desk"
        date = "2026-10-14"
    strings:
        // Core family identifier & heuristic payload signatures
        $attrib_str = "neoreklami" ascii wide nocase
        $pe_magic = "MZ" ascii
        $net_marker = "http" ascii nocase
    condition:
        uint16(0) == 0x5a4d and ($attrib_str and $net_marker) and filesize < 15MB
}

Containment & Response Steps

Ordered checklist for responders. Adapt to your environment and engage professional support for active incidents.

1. Disconnect the affected host from the local network to halt secondary payload downloads and affiliate beaconing.
2. Inspect and sanitize desktop, Start menu, and taskbar browser shortcuts (.lnk) to strip appended malicious target URLs.
3. Remove unauthorized browser extensions and reset browser profile preferences to factory defaults.
4. Execute an updated antimalware scan to purge persistent background watchdog executables and registry autostart values.

What to Avoid

Common mistakes during response to this family that can destroy evidence, spread the infection, or worsen recovery.

1. Do not install software packages from untrusted download portals that employ custom wrapper installers.
2. Avoid clicking on injected pop-up advertisements or recommended sponsored driver update utilities.

References & External Analysis

• Microsoft Defender Security Intelligence - Adware:Win32/Neoreklami
• Malwarebytes Labs Threat Intelligence - Adware.Neoreklami
• Search "neoreklami" on VirusTotal (External Analysis)
• Search "neoreklami" on Any.Run (Sandbox Sandbox)
• Search "neoreklami" on MalwareBazaar (Malware Samples)

Frequently Asked Questions

Related Threats (Category: Adware)

Explore other documented threats in the same operational category:

• Elemental
• Neobar
• Firseria
• Opencandy
• Kuzitui
• Elex
• Mywebsearch
• Unwaders

Machine-readable

Get this profile as JSON: https://malware-families-catalog.systemhelpdesk.com/api/neoreklami.json

Ecosystem & Interactive Environments

This profile is part of the Malware Families Catalog, a public dataset of 2,899 malware families. The catalog is also published across our ecosystem: Hugging Face, Kaggle, Zenodo, Replit, StackBlitz, CodeSandbox, and CodePen.