Qakbot Campaign Self Deletion

Back


Id	47c02e21-3949-4e05-a28e-576cd75ff6f6
Rulename	Qakbot Campaign Self Deletion
Description	This query was originally published in the threat analytics report, Qakbot blight lingers, seeds ransomware Qakbot is malware that steals login credentials from banking and financial services. It has been deployed against small businesses as well as major corporations. Some outbreaks have involved targeted ransomware campaigns that use a similar set of techniques. Links to related queries are listed under See also. The following query detects if an instance of Qakbot has attempted to overwrite its original binary. Reference - https://www.microsoft.com/security/blog/2017/11/06/mitigating-and-eliminating-info-stealing-qakbot-and-emotet-in-corporate-networks/
Severity	Medium
Tactics	DefenseEvasion
Techniques	T1070
Required data connectors	MicrosoftThreatProtection
Kind	Scheduled
Query frequency	1h
Query period	1h
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Microsoft Defender XDR/Analytic Rules/Defense Evasion/QakbotCampaignSelfDeletion.yaml
Version	1.0.0
Arm template	47c02e21-3949-4e05-a28e-576cd75ff6f6.json

KQL

DeviceProcessEvents 
| where FileName =~ "ping.exe"
| where InitiatingProcessFileName =~ "cmd.exe"
| where (InitiatingProcessCommandLine has "calc.exe") and (InitiatingProcessCommandLine has "-n 6") and (InitiatingProcessCommandLine has "127.0.0.1")
| project TimeGenerated, ProcessCommandLine, InitiatingProcessCommandLine, InitiatingProcessParentFileName, DeviceId, DeviceName
| extend HostName = iff(DeviceName has '.', substring(DeviceName, 0, indexof(DeviceName, '.')), DeviceName)
| extend DnsDomain = iff(DeviceName has '.', substring(DeviceName, indexof(DeviceName, '.') + 1), "")

YAML

description: |
  This query was originally published in the threat analytics report, Qakbot blight lingers, seeds ransomware
  Qakbot is malware that steals login credentials from banking and financial services. It has been deployed against small businesses as well as major corporations. Some outbreaks have involved targeted ransomware campaigns that use a similar set of techniques. Links to related queries are listed under See also.
  The following query detects if an instance of Qakbot has attempted to overwrite its original binary.
  Reference - https://www.microsoft.com/security/blog/2017/11/06/mitigating-and-eliminating-info-stealing-qakbot-and-emotet-in-corporate-networks/  
entityMappings:
- fieldMappings:
  - columnName: DeviceName
    identifier: FullName
  - columnName: HostName
    identifier: HostName
  - columnName: DnsDomain
    identifier: DnsDomain
  entityType: Host
query: |
  DeviceProcessEvents 
  | where FileName =~ "ping.exe"
  | where InitiatingProcessFileName =~ "cmd.exe"
  | where (InitiatingProcessCommandLine has "calc.exe") and (InitiatingProcessCommandLine has "-n 6") and (InitiatingProcessCommandLine has "127.0.0.1")
  | project TimeGenerated, ProcessCommandLine, InitiatingProcessCommandLine, InitiatingProcessParentFileName, DeviceId, DeviceName
  | extend HostName = iff(DeviceName has '.', substring(DeviceName, 0, indexof(DeviceName, '.')), DeviceName)
  | extend DnsDomain = iff(DeviceName has '.', substring(DeviceName, indexof(DeviceName, '.') + 1), "")  
tactics:
- DefenseEvasion
severity: Medium
triggerThreshold: 0
queryFrequency: 1h
status: Available
queryPeriod: 1h
relevantTechniques:
- T1070
tags:
- Qakbot
- Ransomware
- Self Deletion
- Defense Evasion
id: 47c02e21-3949-4e05-a28e-576cd75ff6f6
name: Qakbot Campaign Self Deletion
kind: Scheduled
triggerOperator: gt
version: 1.0.0
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Microsoft Defender XDR/Analytic Rules/Defense Evasion/QakbotCampaignSelfDeletion.yaml
requiredDataConnectors:
- dataTypes:
  - DeviceProcessEvents
  connectorId: MicrosoftThreatProtection

ARM