Marshtreader

Also known asmarshtreader

Marshtreader is an Iran-linked threat actor active since 2020 and reportedly linked to Iran’s Ministry of Intelligence and Security (MOIS). The content identifies Marshtreader as also known as Pink Sandstorm, Agrius, and Agonizing Serpens. In June 2025, the group was reported scanning for vulnerable cameras in Israel for reconnaissance and bombing damage assessment, including exploitation or targeting of CVE-2023-6895 and CVE-2017-7921. The same reconnaissance capability was assessed as likely still active in the current period. The reporting specifically describes the group conducting reconnaissance against Israeli targets during periods of regional tension.

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OPERATIONAL PROFILE

Targeting

Who, where, and (when attributed) which flag flies behind the operation. Pulled from open-source reporting and Mallory's analyst review.

Where they target

Geographies tied to known operations.

🇮🇱 Israel

MITRE ATT&CK

Tradecraft

5 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 tactics6 techniques×N= number of intelligence reports citing this technique

MITRE ATT&CK

TA0043

Reconnaissance

1 technique

T1595×2

Active Scanning

TA0001

Initial Access

1 technique

T1190

Exploit Public-Facing Application

TA0006

Credential Access

1 technique

T1110

Brute Force

T1110.003

Password Spraying

TA0007

Discovery

1 technique

T1046×3

Network Service Discovery

TA0040

Impact

1 technique

T1485

Data Destruction

ACTIVITY FEED

Recent activity

5 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.

5 SOURCESView more in app

security affairsNews

May 6, 2026

Iranian cyber espionage disguised as a Chaos Ransomware attack

Conducted reconnaissance by scanning vulnerable cameras in Israel during regional tensions.

centripetal threat researchNews

Mar 20, 2026

Pre-Positioned Access: The Cyber Threat Behind the Iran… | Centripetal

Actor conducting reconnaissance by scanning vulnerable cameras for bombing damage assessment.

security affairsNews

Mar 6, 2026

Iran-linked MuddyWater deploys Dindoor malware against U.S. organizations

Iranian-aligned group conducting reconnaissance by scanning vulnerable cameras in Israel during regional tensions.

security affairsNews

Mar 6, 2026

Iran-linked MuddyWater deploys Dindoor malware against U.S. organizations

Group conducting reconnaissance in Israel by scanning vulnerable cameras during regional tensions.

+1 more in the timeline

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Target overlap

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

Tradecraft mapping5

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

Malware arsenal

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

Exploited CVEs

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.