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Mallory
MalwareUsed by 2 actors

MultiLayer

MultiLayer is a highly modular wiper malware family referenced as part of Iran’s destructive malware arsenal. The provided content associates MultiLayer with collaborative operations between Agonizing Serpens (Agrius) and Boggy Serpens (MuddyWater). It states that these actors deployed MultiLayer alongside BFG Agonizer in concurrent campaigns and frequently abused legitimate remote monitoring and management (RMM) tools to distribute the payloads at scale. The malware is described in the context of Iranian state-aligned disruptive operations that have targeted organizations for destructive impact, particularly as part of a broader evolution from overt custom wipers toward combinations of modular destructive payloads and abuse of legitimate enterprise administration platforms. The content explicitly identifies MultiLayer as one of more than 15 Iranian wiper families. No specific indicators of compromise, file hashes, or detailed technical internals for MultiLayer are provided in the source content.

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THREAT ACTORS

Groups observed using it

2 distinct threat actors attributed by public researchers. Open in Mallory to see the full evidence chain and overlapping campaigns.

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Mustang Panda

MultiLayer and BFG Agonizer: Concurrently, collaborative deployments between Agonizing Serpens and Boggy Serpens (aka MuddyWater) introduced highly modular wipers like MultiLayer and BFG Agonizer. These operations frequently abused legitimate remote monitoring and management (RMM) tools to distribute the payloads at scale.

via palo alto networks unit 42 blogunit42.paloaltonetworks.com
MuddyWater

MultiLayer and BFG Agonizer: Concurrently, collaborative deployments between Agonizing Serpens and Boggy Serpens (aka MuddyWater) introduced highly modular wipers like MultiLayer and BFG Agonizer. These operations frequently abused legitimate remote monitoring and management (RMM) tools to distribute the payloads at scale.

via palo alto networks unit 42 blogunit42.paloaltonetworks.com
MITRE ATT&CK

Techniques & procedures

3 distinct techniques documented for this family, organized by ATT&CK tactic.

Command and Control

1 technique
T1219Remote Access ToolsEvidence1

These operations frequently abused legitimate remote monitoring and management (RMM) tools to distribute the payloads at scale.

Exfiltration

1 technique
T1041Exfiltration Over C2 ChannelEvidence1

Destructive deployments were consistently paired with aggressive data exfiltration, creating simultaneous hack-and-leak operations.

Impact

1 technique
T1485Data DestructionEvidence2

Instead, they opted for rapid, recursive file-level destruction, overwriting targeted files with 4096-byte blocks of random data.

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IOC matching

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Threat actor attribution2

Named campaigns wielding this family, with evidence pinned to each claim.

Exploited vulnerabilities

CVEs this family uses for access and lateral movement.

Detection signatures

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

MITRE ATT&CK mapping3

Every documented technique, ranked by evidence weight.

Researcher chatter

Reddit, Mastodon, and CTI community discussion around this family.