Kaspersky Threats — Virus.VBS.Redlof.a

クラス: Virus

ウィルスは、ローカルマシンのリソース上で複製します。ワームとは異なり、ウイルスはネットワークサービスを使用して他のコンピュータに伝播したり侵入したりしません。感染したオブジェクトが何らかの理由でウイルス機能に関係なく他のコンピュータで有効になっている場合にのみ、ウイルスのコピーがリモートコンピュータに届きます。たとえば、アクセス可能なディスクに感染すると、ウイルスはネットワークリソースにあるファイルに侵入し、ウイルスは自身をリムーバブルストレージデバイスにコピーしたり、リムーバブルデバイス上のファイルに感染させたりします。ユーザーは感染した添付ファイル付きの電子メールを送信します。

プラットフォーム: VBS

Visual Basic Scripting Edition（VBScript）は、Windows Script Hostによって解釈されるスクリプト言語です。 VBScriptは、Microsoft Windowsオペレーティングシステムでスクリプトを作成するために広く使用されています。

ファミリー: Virus.VBS.Redlof

No family description

Examples

0CFC0A5CCC2073B9AD4F087D53DE617C
E37A41C9871686333737BFE847476C87
F65350D71E0376F0978E519486C3BA2E
929B747DB64D95891E02D6CD4390DC9A
2B39F1817CC65DB23854954DB856287C

Tactics and Techniques: Mitre*

TA0002

Execution

The adversary is trying to run malicious code. Execution consists of techniques that result in adversary-controlled code running on a local or remote system. Techniques that run malicious code are often paired with techniques from all other tactics to achieve broader goals, like exploring a network or stealing data. For example, an adversary might use a remote access tool to run a PowerShell script that does Remote System Discovery.

T1106

Native API

Adversaries may interact with the native OS application programming interface (API) to execute behaviors. Native APIs provide a controlled means of calling low-level OS services within the kernel, such as those involving hardware/devices, memory, and processes. These native APIs are leveraged by the OS during system boot (when other system components are not yet initialized) as well as carrying out tasks and requests during routine operations.

TA0005

Defense Evasion

The adversary is trying to avoid being detected. Defense Evasion consists of techniques that adversaries use to avoid detection throughout their compromise. Techniques used for defense evasion include uninstalling/disabling security software or obfuscating/encrypting data and scripts. Adversaries also leverage and abuse trusted processes to hide and masquerade their malware. Other tactics' techniques are cross-listed here when those techniques include the added benefit of subverting defenses.

T1070.004

File Deletion

Adversaries may delete files left behind by the actions of their intrusion activity. Malware, tools, or other non-native files dropped or created on a system by an adversary (ex: Ingress Tool Transfer) may leave traces to indicate to what was done within a network and how. Removal of these files can occur during an intrusion, or as part of a post-intrusion process to minimize the adversary's footprint.

T1112

Modify Registry

Adversaries may interact with the Windows Registry as part of a variety of other techniques to aid in defense evasion, persistence, and execution.

TA0007

Discovery

The adversary is trying to figure out your environment. Discovery consists of techniques an adversary may use to gain knowledge about the system and internal network. These techniques help adversaries observe the environment and orient themselves before deciding how to act. They also allow adversaries to explore what they can control and what's around their entry point in order to discover how it could benefit their current objective. Native operating system tools are often used toward this post-compromise information-gathering objective.

T1010

Application Window Discovery

Adversaries may attempt to get a listing of open application windows. Window listings could convey information about how the system is used. For example, information about application windows could be used identify potential data to collect as well as identifying security tooling (Security Software Discovery) to evade.

TA0009

Collection

The adversary is trying to gather data of interest to their goal. Collection consists of techniques adversaries may use to gather information and the sources information is collected from that are relevant to following through on the adversary's objectives. Frequently, the next goal after collecting data is to steal (exfiltrate) the data. Common target sources include various drive types, browsers, audio, video, and email. Common collection methods include capturing screenshots and keyboard input.

T1185

Browser Session Hijacking

Adversaries may take advantage of security vulnerabilities and inherent functionality in browser software to change content, modify user-behaviors, and intercept information as part of various browser session hijacking techniques.