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T1098Persistencehard difficulty

Account Manipulation

Account Manipulation keeps an already-compromised account usable by changing its properties rather than creating a new one: resetting credentials, granting permissions, enrolling an attacker-controlled MFA factor, or iterating passwords to defeat history rules. In cloud and AD it often means new role bindings or service-principal secrets. Analysts watch for unexpected MFA enrollments, group and permission changes on privileged accounts, and SSH authorized_keys edits that re-establish access even after a password reset.

Practice detecting Account Manipulation on realistic SIEM, XDR alerts in SOCSimulator Operations.

SIEMXDR

What is Account Manipulation?

Account Manipulation is documented as technique T1098 in MITRE ATT&CK® v19.1 under the Persistence tactic. Detection requires visibility into SIEM, XDR telemetry.

Detection Strategies

The following detection strategies help SOC analysts identify Account Manipulation activity. These methods apply across SIEM, XDR environments and can be implemented as detection rules, correlation queries, or behavioral analytics in your security platform.

  1. 1

    Monitor for changes to user account attributes in Active Directory including SIDHistory modifications, AdminSDHolder changes, and group membership modifications for sensitive groups.

  2. 2

    Track password reset and credential modification events, particularly for privileged accounts, service accounts, and accounts that have recently been involved in suspicious authentication activity.

  3. 3

    Alert on enrollment of new MFA methods or authentication devices for accounts that were not previously enrolled, as attackers may add their own authentication factors to maintain access after password changes.

  4. 4

    Monitor cloud platform audit logs for IAM permission changes, role policy modifications, and service principal credential additions that were not authorized through change management processes.

  5. 5

    Detect SSH authorized_key file modifications on Linux servers and workstations, as attackers frequently add their own public keys to maintain persistent SSH access even after password-based credentials are changed.

Example Alerts

These realistic alert examples show what Account Manipulation looks like in your security tools. Use them to tune detection rules and train analysts to recognize true positives versus false positives in live environments.

HighSIEM

MFA Device Enrolled for Administrator Account

New MFA device enrolled for account admin_jbaker from an IP address in Russia. The account owner has not submitted a helpdesk ticket for MFA enrollment and was not scheduled for a device upgrade. The enrolling IP has no prior authentication history for this account and appears on threat intelligence as associated with APT infrastructure.

CriticalXDR

SSH Authorized Keys Modified on Production Server

File integrity monitoring detected modification to /home/deploy/.ssh/authorized_keys on production database server DB-PROD-01. A new public key was appended that does not belong to any registered IT staff member. The modification was made by the deploy service account which should not normally modify SSH configuration files.

HighSIEM

Privileged Group Membership Changed

Active Directory audit shows standard user account bjohnson added to Domain Admins group at 11:47 PM. The modification was made by a service account used for automated provisioning that is not authorized to modify privileged groups. The service account credentials were potentially compromised as part of a broader intrusion detected on the network.

Frequently Asked Questions

How do SOC analysts detect Account Manipulation?
Detection centers on SIEM, XDR telemetry for the persistence phase of the attack. Monitor for changes to user account attributes in Active Directory including SIDHistory modifications, AdminSDHolder changes, and group membership modifications for sensitive groups. Track password reset and credential modification events, particularly for privileged accounts, service accounts, and accounts that have recently been involved in suspicious authentication activity.
What does a Account Manipulation alert look like?
A representative SIEM detection is "MFA Device Enrolled for Administrator Account" (high severity): New MFA device enrolled for account admin_jbaker from an IP address in Russia. The account owner has not submitted a helpdesk ticket for MFA enrollment and was not scheduled for a device upgrade. The enrolling IP has no prior authentication history for this account and appears on threat intelligence as associated with APT infrastructure.
Which tools detect Account Manipulation, and how can I practice?
Account Manipulation (T1098) is best surfaced with SIEM, XDR telemetry, which exposes the persistence signals described above. Practice detecting it on those exact consoles in SOCSimulator Operations, free.

Practice Account Manipulation in a Free Room

Investigate Account Manipulation on realistic SIEM, XDR, and firewall consoles, free.

Account Takeover: Impossible-Travel Sign-In

Account Takeover: Impossible-Travel Sign-In

A finance analyst's Microsoft Entra account is accessed without MFA from Moldova 18 minutes after their normal London sign-in. Impossible travel confirmed. The unauthorized session reads the inbox via Graph and adds an external recovery address. Work the Entra audit trail to identify the attacker IP, the compromised mailbox, and the persistence mechanism.

25m·256 tasks
View Operation
Cloud Identity Under Siege

Cloud Identity Under Siege

Nine days of telemetry from a cloud-first Azure estate: Entra ID sign-ins, Windows endpoints, a Kubernetes cluster, an Azure Function and the storage accounts behind them all report into one SIEM. Something inside that window does not fit the shape the estate normally has. Work the SIEM, XDR, firewall and cloud panels together, pin each observation to a host and a principal you can name, and rebuild the sequence from the records themselves.

1h·508 tasks
View Operation
Finance Mailbox Takeover at MegaCorp Logistics

Finance Mailbox Takeover at MegaCorp Logistics

A finance analyst at MegaCorp Logistics reported that colleagues were receiving replies to messages she never sent, and her account was disabled while the investigation runs. You have the SIEM feed and the endpoint XDR telemetry for the workstation estate and the mail platform, covering the week around the report. Reconstruct what happened: which host produced the endpoint evidence, what its browser reached, how the account was taken over, and what was left behind on the mail platform so the containment plan is complete.

45m·508 tasks
View Operation
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