Malware

DoubleZero Destructor

For your environment

Hunt this family in your stack

Mallory pivots from this family to the IOCs, detections, and named campaigns that touch your stack, and pages you when something new lands.

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MITRE ATT&CK

Techniques & procedures

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

Persistence

1 technique

T1112Modify RegistryEvidence1

Deletes registry hives: HKCU... HKLM... HKU... HKLM \BCD... Then it will change the ownership of the registry to the current logo user and change the access control to full access to delete each of the subkeys in each HKLM, HKCU, HKU registry hive.

Privilege Escalation

1 technique

T1134Access Token ManipulationEvidence1

Then it will adjust the token privilege and the securityIdentifier of its process to have “ full control ” file system rights to avoid error or access denied while wiping the normal or system files it found in the compromised host.

Stealth

3 techniques

T1027Obfuscated Files or InformationEvidence1

An added layering of obfuscation via junk code to obfuscate and impair forensic analysis... This malware is a .net compiled binary that has a customized obfuscation and a large amount of junk code that makes analysis harder to accomplish.

T1070.004File DeletionEvidence1

Before performing its destructive functions it will list several directory names and paths where it will look for files it will wipe... this malware will enumerate all the drives mounted to the machine to look for more files to wipe.

T1134Access Token ManipulationEvidence1

Defense Impairment

1 technique

T1112Modify RegistryEvidence1

Discovery

3 techniques

T1033System Owner/User DiscoveryEvidence1

Then it will change the ownership of the registry to the current logo user and change the access control to full access to delete each of the subkeys...

T1057Process DiscoveryEvidence1

First, it will kill the enumerated process to look for a process with the name “lsass” and kill it. Below is the code screenshot of how it enumerates all processes and executes process.Kill() function if the “lsass” process was found.

T1482Domain Trust DiscoveryEvidence1

Enumerates Domain Controllers and executes killswitch if detected... it will enumerate the list of domain controllers connected to the compromised host. This function was used to skip or as a kill switch if the compromised host is the domain controller machine.

Impact

1 technique

T1485Data DestructionEvidence1

Overwrites files with zero blocks of 4096 bytes... Lists system files and then proceeds to destroy them... Then it will open the target file using NtOpenFile() native API to zero or wipe it using a native API NtFsControlFile() that sends an IOCTL control code FSCTL_SET_ZERO_DATA directly to a specified file system.

Other

1 technique

T1562.001Disable or Modify ToolsEvidence1

First, it will kill the enumerated process to look for a process with the name “lsass” and kill it.

ACTIVITY FEED

Recent activity

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

1 SOURCESView more in app

splunk security blogNews

Mar 28, 2022

Threat Update DoubleZero Destructor | Splunk

A destructive .NET wiper that enumerates domain controllers and avoids wiping them via a kill switch, wipes files by zeroing data using native APIs or .NET file writes, deletes registry hive subkeys after modifying permissions, kills lsass, and renders systems unbootable before shutdown.

What this page doesn’t show

The version that knows your environment.

This page is what’s public. Mallory adds the parts that aren’t: which of your assets match these IOCs, which detections are missing, which campaigns to expect next, and what to do in the next 30 minutes.

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IOC matching

Match every observed IP, domain, and hash against your live telemetry.

Threat actor attribution

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 mapping9

Every documented technique, ranked by evidence weight.

Researcher chatter

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

Back to malware

Malware

DoubleZero Destructor

For your environment

Hunt this family in your stack

Mallory pivots from this family to the IOCs, detections, and named campaigns that touch your stack, and pages you when something new lands.

Start free trial

MITRE ATT&CK

Techniques & procedures

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

Persistence

1 technique

T1112Modify RegistryEvidence1

Privilege Escalation

1 technique

T1134Access Token ManipulationEvidence1

Stealth

3 techniques

T1027Obfuscated Files or InformationEvidence1

T1070.004File DeletionEvidence1

T1134Access Token ManipulationEvidence1

Defense Impairment

1 technique

T1112Modify RegistryEvidence1

Discovery

3 techniques

T1033System Owner/User DiscoveryEvidence1

Then it will change the ownership of the registry to the current logo user and change the access control to full access to delete each of the subkeys...

T1057Process DiscoveryEvidence1

T1482Domain Trust DiscoveryEvidence1

Impact

1 technique

T1485Data DestructionEvidence1

Other

1 technique

T1562.001Disable or Modify ToolsEvidence1

First, it will kill the enumerated process to look for a process with the name “lsass” and kill it.

ACTIVITY FEED

Recent activity

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

1 SOURCESView more in app

splunk security blogNews

Mar 28, 2022

Threat Update DoubleZero Destructor | Splunk

What this page doesn’t show

The version that knows your environment.

Start free trial

IOC matching

Match every observed IP, domain, and hash against your live telemetry.

Threat actor attribution

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 mapping9

Every documented technique, ranked by evidence weight.

Researcher chatter

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