Malware

sysrvv

For your environment

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MITRE ATT&CK

Techniques & procedures

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

Initial Access

2 techniques

T1078Valid AccountsEvidence1

If access is gained, the malware attempts to upload a plugin or edit a theme.

T1190Exploit Public-Facing ApplicationEvidence1

There appears to be additional functions to brute force JupyterLab Notebook credentials, I suspect in an attempt to run arbitrary commands on poorly secured notebooks.

Execution

3 techniques

T1053.003CronEvidence1

It also adds a crontab that reinfects the system every 30 minutes using either wget, curl, or a php script instead of relying on one method of downloading the binary

T1059.004Unix ShellEvidence1

The malware attempted to exploit the ThinkPHP vulnerability in order to download and execute a script named ldr.sh. The loader script downloads the sysrvv binary and kills off other crypto miners.

T1203Exploitation for Client ExecutionEvidence1

The malware attempted to exploit the ThinkPHP vulnerability in order to download and execute a script named ldr.sh.

Persistence

3 techniques

T1053.003CronEvidence1

It also adds a crontab that reinfects the system every 30 minutes using either wget, curl, or a php script instead of relying on one method of downloading the binary

T1078Valid AccountsEvidence1

If access is gained, the malware attempts to upload a plugin or edit a theme.

T1556Modify Authentication ProcessEvidence1

If access is gained, the malware attempts to upload a plugin or edit a theme.

Privilege Escalation

2 techniques

T1053.003CronEvidence1

It also adds a crontab that reinfects the system every 30 minutes using either wget, curl, or a php script instead of relying on one method of downloading the binary

T1078Valid AccountsEvidence1

If access is gained, the malware attempts to upload a plugin or edit a theme.

Stealth

2 techniques

T1070Indicator RemovalEvidence1

The malware attempts to kill off other crypto miners by removing their persistence... It removes any other existing miners including ones hiding as docker images.

T1078Valid AccountsEvidence1

If access is gained, the malware attempts to upload a plugin or edit a theme.

Defense Impairment

1 technique

T1556Modify Authentication ProcessEvidence1

If access is gained, the malware attempts to upload a plugin or edit a theme.

Credential Access

3 techniques

T1110Brute ForceEvidence1

The following functions are also used to attempt a brute force login, based on a list of credentials stored in the malware binary.

T1110.001Password GuessingEvidence1

The following functions are also used to attempt a brute force login, based on a list of credentials stored in the malware binary. wordpress.(*wpExec).login

T1556Modify Authentication ProcessEvidence1

If access is gained, the malware attempts to upload a plugin or edit a theme.

Command and Control

1 technique

T1105Ingress Tool TransferEvidence1

The loader script downloads the sysrvv binary... It also adds a crontab that reinfects the system every 30 minutes using either wget, curl, or a php script

Impact

1 technique

T1496Resource HijackingEvidence1

There are many crypto mining malware variants infecting systems on the internet... We also can determine that they're mining Monero coins

Other

1 technique

T1562Impair DefensesEvidence1

The malware attempts to kill off other crypto miners by removing their persistence and ease security restrictions by disabling SELINUX and iptables on the victim host.

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

blogs akamaiNews

Mar 16, 2021

Akamai Blog | Another Golang Crypto Miner On the Loose

A Golang-based cryptomining malware that downloads and executes a loader script, installs persistence via cron, disables security controls such as SELinux and iptables, removes competing miners, and mines Monero using a configured mining pool.

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The version that knows your environment.

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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 mapping12

Every documented technique, ranked by evidence weight.

Researcher chatter

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

Back to malware

Malware

sysrvv

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

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

Initial Access

2 techniques

T1078Valid AccountsEvidence1

If access is gained, the malware attempts to upload a plugin or edit a theme.

T1190Exploit Public-Facing ApplicationEvidence1

There appears to be additional functions to brute force JupyterLab Notebook credentials, I suspect in an attempt to run arbitrary commands on poorly secured notebooks.

Execution

3 techniques

T1053.003CronEvidence1

It also adds a crontab that reinfects the system every 30 minutes using either wget, curl, or a php script instead of relying on one method of downloading the binary

T1059.004Unix ShellEvidence1

The malware attempted to exploit the ThinkPHP vulnerability in order to download and execute a script named ldr.sh. The loader script downloads the sysrvv binary and kills off other crypto miners.

T1203Exploitation for Client ExecutionEvidence1

The malware attempted to exploit the ThinkPHP vulnerability in order to download and execute a script named ldr.sh.

Persistence

3 techniques

T1053.003CronEvidence1

It also adds a crontab that reinfects the system every 30 minutes using either wget, curl, or a php script instead of relying on one method of downloading the binary

T1078Valid AccountsEvidence1

If access is gained, the malware attempts to upload a plugin or edit a theme.

T1556Modify Authentication ProcessEvidence1

If access is gained, the malware attempts to upload a plugin or edit a theme.

Privilege Escalation

2 techniques

T1053.003CronEvidence1

It also adds a crontab that reinfects the system every 30 minutes using either wget, curl, or a php script instead of relying on one method of downloading the binary

T1078Valid AccountsEvidence1

If access is gained, the malware attempts to upload a plugin or edit a theme.

Stealth

2 techniques

T1070Indicator RemovalEvidence1

The malware attempts to kill off other crypto miners by removing their persistence... It removes any other existing miners including ones hiding as docker images.

T1078Valid AccountsEvidence1

If access is gained, the malware attempts to upload a plugin or edit a theme.

Defense Impairment

1 technique

T1556Modify Authentication ProcessEvidence1

If access is gained, the malware attempts to upload a plugin or edit a theme.

Credential Access

3 techniques

T1110Brute ForceEvidence1

The following functions are also used to attempt a brute force login, based on a list of credentials stored in the malware binary.

T1110.001Password GuessingEvidence1

The following functions are also used to attempt a brute force login, based on a list of credentials stored in the malware binary. wordpress.(*wpExec).login

T1556Modify Authentication ProcessEvidence1

If access is gained, the malware attempts to upload a plugin or edit a theme.

Command and Control

1 technique

T1105Ingress Tool TransferEvidence1

The loader script downloads the sysrvv binary... It also adds a crontab that reinfects the system every 30 minutes using either wget, curl, or a php script

Impact

1 technique

T1496Resource HijackingEvidence1

There are many crypto mining malware variants infecting systems on the internet... We also can determine that they're mining Monero coins

Other

1 technique

T1562Impair DefensesEvidence1

The malware attempts to kill off other crypto miners by removing their persistence and ease security restrictions by disabling SELINUX and iptables on the victim host.

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

blogs akamaiNews

Mar 16, 2021

Akamai Blog | Another Golang Crypto Miner On the Loose

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 mapping12

Every documented technique, ranked by evidence weight.

Researcher chatter

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