1 malware familyExploits CVEs in the wild

Cactus ransomware group

Also known asCactus ransomware group

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MITRE ATT&CK

Tradecraft

7 distinct techniques observed across reporting, grouped by tactic. Hover any cell for the evidence excerpt; click through for MITRE's full description.

5 of 15 tactics7 techniques×N= number of intelligence reports citing this technique

MITRE ATT&CK

TA0001

Initial Access

1 technique

T1190

Exploit Public-Facing Application

TA0002

Execution

1 technique

T1059

Command and Scripting Interpreter

TA0005

Stealth

1 technique

T1036

Masquerading

TA0007

Discovery

3 techniques

T1033

System Owner/User Discovery

T1083

File and Directory Discovery

T1124

System Time Discovery

TA0009

Collection

1 technique

T1074

Data Staged

ARSENAL

Associated malware families

1 malware family attributed to this actor across reporting.

FamilyContextEvidenceLast seen

CACTUSSince November 2023, the Cactus ransomware group has been actively targeting vulnerable Qlik Sense servers.1May 27, 2026

WEAPONIZED

Associated vulnerabilities

3 CVEs this actor has used in observed campaigns. 3 of them exploited in the wild.

CVE-2023-41265ZeroQlik HTTP Request Tunneling in Qlik Sense Enterprise for WindowsIn the wildEvidence1

For those looking for in-depth coverage of these exploits, the Arctic Wolf blog provides detailed insights into the specific vulnerabilities being exploited, notably CVE-2023-41266, CVE-2023-41265 also known as ZeroQlik, and potentially CVE-2023-48365 also known as DoubleQlik.

CVE-2023-41266Path Traversal Authentication Bypass in Qlik Sense Enterprise for WindowsIn the wildEvidence1

CVE-2023-48365DoubleQlik / HTTP Tunneling RCE in Qlik Sense Enterprise for WindowsIn the wildEvidence1

Our vulnerability assessment for DoubleQlik / CVE-2023-48365 operated on the following criteria... As of 17 April 2024... 3143 servers are still at risk of DoubleQlik, indicating that 60% of all Qlik Servers online remain vulnerable.

ACTIVITY FEED

Recent activity

No public activity tracked yet. Mallory keeps watching.

0 SOURCESView more in app

No public activity observed for this threat actor.

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Target overlap

Match sector + geo + tech-stack targeting against your real footprint.

Tradecraft mapping7

Every observed MITRE ATT&CK technique, grouped by tactic.

Malware arsenal1

Families this actor is known to deploy, with IOCs and behavior.

Exploited CVEs3

CVEs this actor has used in known campaigns.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Observables

Domains, IPs, and hashes tied to this actor, refreshed continuously.