An unsolicited email address [email protected] is spreading a new ransomware infection that experts have called Dharma. When Dharma attacks, it encrypts the files found on victims computers and appends the file extension .dharma with a unique identifier so that users will no longer be able to open the files. Following the attack, the virus asks the owners of the affected system to pay so they can recover the encrypted files. If you are already a victim of Dharma virus, read further to see how you can get rid of Dharma. Just keep in mind that paying the ransom is not, by all means, a solution.
Dharma Ransomware – How Does It Replicate
Affected users have reported on various security forums about the attack of Dharma ransomware on their system. The scary thing is that the malware attack is not limited to home computers. Office networks are not spared either. The spread of the virus happens in various ways:
- Flash drive. The use of an infected flash drive used in the office environment triggers the virus.
- Self-executing worm. Once a system on office network is infected, a self-executing worm in a flash wakes up and multiplies the malware across the network.
- Spam emails with compromised attachments.
Dharma ransomware is suspected to be a variant obtained from an open source code or could be that it was bought from the black hat world. The malware spreads faster and in huge amount posing serious threats to computer users and organizations.
Even more severe is the fact that the virus can move unnoticed by the majority of antivirus software, which is likely that the malware employs advanced obfuscation to evade detection while replicating.
Dharma Ransomware Detailed Description
ユーザーがウイルスの場所にアクセスしたとき、またはその添付ファイルを開いたとき, マルウェアのコピーが自動的に実行されます. 瞬時に, svchost.exeファイルやexplorer.exeファイルなどの適切なWindowsプロセスに必要なコマンドの挿入を開始します. ウイルスは、システム上のシャドウボリュームのコピーまたはバックアップを削除することから始まる可能性があります; これは、vssadminコマンドを非表示にして実行し、気付かれることを回避することで発生します。.
影響を受けたファイルの履歴を削除することに成功したとき, the virus will likely add custom registry values with data in the Run and RunOnce 3Windows Registry subkeys. 追加されたデータは、ダルマランサムウェアプログラムを実行するように構成されており、次のファイルの暗号化を開始します:
- 資料
- ピクチャー
- オーディオ
- ビデオ
- データベース
- アドビリーダー, PDF
- VMware, Photoshop
- MicrosoftOfficeファイル
悪意のある暗号化アクティビティの完了後, システムexplorer.exeが「応答しない」状態になります, ウイルスは、犯罪者の電子メールとダルマファイル拡張子を影響を受けるファイルに追加して、それらを再び開くことができないようにします.
How to Remove Dharma Ransomware
Removing Dharma ransomware is possible but restoring your files may not be. しかしながら, if you have been infected by Dharma or any other ransomware virus, make sure to remove the infection first by using a trustworthy anti-malware tool and only then try to recover some of your data. Sometimes experts manage to hack the particular ransomware infection and release a decryption key to the public that could successfully unlock the encrypted files. But if they never release such a key, paying the ransom is still the worst case scenario as this way you only foster cyber crime without a guarantee that you’ll receive the promised key.
マルウェア除去ツールをダウンロードする, システムがCerberの影響を受けているかどうかを確認する 4.1.3 ランサムウェア