# TOTVS targeted by Direwolf ransomware gang

Published: 2026-08-15 · Severity: elevated · Sectors: technology
Canonical: https://vorant.io/reports/a3aa8ace-0253-5e16-b77e-b51d70648e17/totvs-targeted-by-direwolf-ransomware-gang

> Direwolf ransomware operators claim compromise of TOTVS with 491 compromised users and exposed attack surface.

Direwolf ransomware group has publicly claimed a compromise of TOTVS, a major Brazilian enterprise software company. The incident involved 52 compromised employees, 491 compromised user accounts, and 25 third-party employee credentials exposed. The attacker also identified 122 external attack surface elements on the victim's domain, suggesting either reconnaissance capability or post-compromise access to internal documentation. This represents a typical extortion-based ransomware operation where the threat actor leverages credential theft and reconnaissance data as leverage for ransom demands. The posting on ransomware.live indicates the group is pursuing public exposure tactics common to modern ransomware-as-a-service operations.

## Mentioned in this report

- Threat actors: Dire Wolf
- Malware: Direwolf

## Detection guidance (public sample)

### Network Packet Capture Started via Built-in or Common Sniffing Utilities

ATT&CK: T1040

Detects packet capture started with netsh trace, pktmon, or command-line sniffers (tshark, dumpcap, windump, RawCap) on Windows hosts, which can be used for credential sniffing. Auto-generated starting point — validate and tune in your environment before deploying. IOC matches can false-positive on shared infrastructure and decay as adversary infrastructure rotates.

```yaml
title: Network Packet Capture Started via Built-in or Common Sniffing Utilities
description: Detects initiation of packet capture on Windows using netsh trace, pktmon,
  or command-line sniffers such as tshark, dumpcap, windump and RawCap. Attackers
  use these to harvest credentials from network traffic. The report gives no concrete
  tooling, so this rule covers the generic technique pattern only, and baseline admin
  and helpdesk use before alerting.
tags:
- attack.credential-access
- attack.discovery
- attack.t1040
logsource:
  category: process_creation
  product: windows
detection:
  selection_netsh:
    Image|endswith: \netsh.exe
    CommandLine|contains|all:
    - trace
    - start
  selection_pktmon:
    Image|endswith: \pktmon.exe
    CommandLine|contains: start
  selection_tools:
    Image|endswith:
    - \tshark.exe
    - \dumpcap.exe
    - \windump.exe
    - \rawcap.exe
  condition: 1 of selection_*
falsepositives:
- Network or helpdesk engineers running netsh trace or pktmon for troubleshooting
- Security or QA teams running Wireshark/tshark on analyst or test workstations
level: medium
id: 3ee30094-cebe-53f9-a53c-42a0b1a2ea64
status: experimental
author: Vorant
references:
- https://www.ransomware.live/id/VE9UVlNAZGlyZXdvbGY=
```

Behavioural rules are generated from public reporting — validate in your environment before deploying.

1 more detection for this report is in the app: the rules that match its indicators, the Sigma rules already converted to Splunk SPL, to Elastic where their fields map onto Elastic's integrations and to Microsoft Defender XDR KQL wherever Defender records the activity, and the YARA and Suricata. A new account gets three days of them free.

Source reporting: https://www.ransomware.live/id/VE9UVlNAZGlyZXdvbGY=

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In the app the same report carries its extracted indicators, its detections (Splunk SPL already written, plus Elastic and Microsoft KQL where they apply), live profiles of the actors and CVEs it names, and the vendor research on the same campaign. Slack alerts fire on the vendors, sectors and countries a reader follows. A new account starts with three days of all of it, no card: https://vorant.io/signup