Netskope
Threat Labs
Report: LATAM

Netskope Threat Labs レポートでは、毎月異なるセグメントが強調表示されています。このレポートシリーズの目的は、各セグメントのユーザーに対するアクティブな脅威に関する戦略的で実用的なインテリジェンスを提供することです。このレポートで強調表示されているセグメントは、ラテンアメリカのユーザーです。

ラテンアメリカ
2023年7月吉日

このレポートではクラウドアプリの導入

クラウドアプリの不正使用

クラウドマルウェア配信クラウドアプリが悪用されてマルウェア配信

マルウェアとランサムウェア

主なマルウェアの種類上位のマルウェアおよびランサムウェアファミリ

推奨事項 Netskope Threat Labs このレポートについて

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このレポートでは

Cloud App Adoption: OneDrive is the most popular app among users in Latin America, followed by Google Drive and Microsoft Teams. Overall, Google apps are more popular in LATAM, while Microsoft apps are more popular in other regions, with the exception of OneDrive and Outlook. Communication apps, such as WhatsApp, Google Chat, and Slack, are significantly more popular among users in Latin America when compared to other regions.

Cloud App Abuse: Attackers are increasingly abusing cloud apps as a malware delivery channel in Latin America, where cloud-delivered malware increased from 47% to 71% in the past twelve months, led by malware downloads from popular apps, including Microsoft OneDrive, Amazon S3, and Outlook.

Malware & Ransomware: The most common types of malware blocked by Netskope in Latin America were Trojans, followed by downloaders, and backdoors. Grandoreiro and Mekotio, which are banking Trojans, are among the top malware families blocked by Netskope in Latin America. LockBit and BlackCat are among the top ransomware blocked by Netskope in the same period.

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クラウドアプリの導入

Cloud app adoption continues to increase in Latin America, with enterprises using cloud apps to improve productivity and enable hybrid workforces. The number of apps a user in Latin America interacts with has increased from 22 to 25 apps over the past twelve months, ahead of other regions. The 12-month average of 23 apps in Latin America is slightly higher than the average of 22 apps in other regions. The top 1% of users in Latin America interacted with 75 apps per month, compared to 96 apps in other regions.

Average apps per user Latin America vs Other Regions - Last 12 Months

Users in Latin America downloaded data from cloud apps at almost the same rate as users throughout other regions, with 95% of users downloading data from cloud apps in Latin America each month, versus 93% in other regions. In the last 12 months, 72% of users in Latin America, on average, uploaded data to cloud apps, compared to 64% of users in other regions. Over the past 12 months, the number of users uploading to cloud apps in Latin America increased 4% between July 2022 and June 2023, growing almost at the same rate as other regions.

Percentage of users uploading data Latin America vs Other Regions - Last 12 Months

最も人気のあるクラウドアプリ

OneDrive is the most popular app in Latin America and other regions, with an average of 50% and 47% users per day, respectively. Google apps, such as Drive, Gmail, and Google Cloud Storage, are more popular among users in Latin America, on average, when compared to other regions. Microsoft apps, with the exception of OneDrive and Outlook, are more popular in regions other than Latin America. This is especially true for SharePoint, with 28% of users on average in other regions versus 17% of users in Latin America. YouTube and WhatsApp are also more popular among users in Latin America, especially WhatsApp, with 5.6x more usage. Facebook is also a popular app among users in LATAM, with a slightly higher average of use compared to other regions.

Overall App Popularity Latin America vs Other Regions

アップロードに使用された上位のアプリ

In addition to being the most popular app overall, Microsoft OneDrive is also the most popular app used for uploads, with 21% of users regularly uploading data on average per day in Latin America, which is slightly lower compared to other regions. Communication apps, such as WhatsApp, Google Chat, and Slack, are more popular for uploads among users in Latin America than in other regions, especially WhatsApp, with 7.7x more usage. Mail apps, such as Google Gmail and Microsoft Outlook, are also more popular among users in Latin America than other regions.

Google Drive is also more popular in Latin America when compared to other regions, with 4.2% of users uploading data on average each day. Other popular apps for uploads in Latin America are SharePoint, Instagram, and Box, with Instagram being used 2.5x more in Latin America.

Apps Used for Uploads Latin America vs Other Regions

ダウンロードに使用された上位アプリ

OneDrive leads the most popular cloud apps for downloads by users in Latin America, with 23% of users per day on average. Communication apps, such as WhatsApp and Slack, are popular apps among users in Latin America for downloads, especially WhatsApp, with 5.8x more usage when compared to other regions. Sharepoint holds the third place, with 11% of users downloading data on average, but less popular in Latin America when compared to other regions.

Google Cloud Storage、Azure Blob Storage、Amazon S3、Google Driveなどのファイルストレージ用のクラウドアプリは、他の地域と比較して、ラテンアメリカのユーザーの間でダウンロードに人気があります。 Google GmailやOutlookなどのメールアプリも、ラテンアメリカのユーザーの間でダウンロードに人気があります。

Apps Used for Downloads Latin America vs Other Regions

クラウドアプリの不正使用

クラウドマルウェア配信

The popularity of cloud malware delivery in Latin American organizations has increased significantly in the past 12 months, increasing from 47% in July 2022 to 71% in June 2023. The 12-month average in Latin American organizations is slightly higher compared to other regions, with 61% of malware downloads from users in Latin America compared to 57% in other regions. Attackers attempt to fly under the radar by delivering malicious content via popular cloud apps. Abusing cloud apps for malware delivery enables attackers to evade security controls that rely primarily on domain block lists and URL filtering, or that do not inspect cloud traffic.

Malware Delivery, Cloud vs. Web Latin America vs Other Regions - Last 12 Months

Compared to other regions, Latin America has a higher average of malware downloads from the cloud, with 61% on average, behind only Australia.

Malware Sourced from the Cloud Last 12 Months Average LATAM

クラウドアプリが悪用されてマルウェア配信

In the last 12 months, Microsoft OneDrive was the most popular cloud app abused for malware downloads in Latin American organizations, representing 21% of all cloud malware downloads. As highlighted earlier in this report, Microsoft OneDrive is also the most popular app among users in Latin America, which makes it both an useful app for attackers seeking to target a wide variety of organizations using the same toolset, and also makes it more likely that the malicious payloads would reach their targets.

Amazon S3 is the second most popular app for malware downloads in Latin American organizations, with 11% of users on average in the last 12 months, significantly above the average in other regions. Mail apps (Outlook, Gmail) are also popular for malware downloads in Latin America, especially Outlook, with 7.5% of downloads on average. GitHub is also commonly abused in Latin America for malware downloads, with a similar average when compared to other regions.

Other apps for file storing/sharing, like Azure Blob Storage, Google Drive, SharePoint, and Dropbox, are also commonly abused in Latin America for malware downloads. The free web hosting service Weebly is also popular for malware downloads in Latin American organizations, but less so than other regions.

Top Cloud Apps Abused for Malware Download Last 12 Months Latin America vs Other Regions

マルウェアとランサムウェア

主なマルウェアの種類

The most common malware detected by Netskope in Latin America in the last twelve months were Trojans, which are commonly used by attackers to gain an initial foothold and deliver other types of malware, such as infostealers, remote access Trojans, backdoors, and ransomware. The second most common type of malware are downloaders, which, like Trojans, are also used to deliver other types of malware.

Rounding out the top three are backdoors. Like Trojans, some malware payloads blocked in this category can also fit other categories, because they provide not only clandestine remote access, but also keylogging, file manipulation, registry manipulation, and other malicious features. Malware in this category include Remcos, Quakbot, and NjRAT (a.k.a Bladabindi).

Most Common Types of Malware Last 12 Months Latin America vs Other Regions

上位のマルウェアおよびランサムウェアファミリ

Infostealer.AgentTesla は .NETベースのリモートアクセス型トロイの木馬で、ブラウザのパスワードの窃取、キーストロークのキャプチャ、クリップボードなど、多くの機能を備えています。

Botnet.Emotet is one of the most prevalent botnets in the cyber threat landscape, often used to deliver other malware such as TrickBot.

Downloader.BanLoad は、さまざまなマルウェアペイロード、特にバンキング型トロイの木馬を配信するために広く使用されている Java ベースのダウンローダーです。

Trojan.Grandoreiro is a Latin America banking trojan with the goal of stealing sensitive banking information, commonly targeting Brazil, Mexico, Spain, and Peru.

Downloader.Guloader is a small downloader known for delivering RAT and infostealers, such as AgentTesla, Formbook, and Remcos.

Trojan.Mekotio is a banking Trojan that usually targets customers of financial institutions based in Latin America.

Trojan.FormBook (別名 XLoader は、感染したマシンを完全に制御し、パスワードを盗んだり、追加のマルウェアを実行したりするなど、多くの機能を提供するマルウェアです。

Infostealer.Dridex has been around since at least 2015 and has had its botnet infrastructure taken down multiple times, but continues to re-emerge with new features and new infrastructure.

Ransomware.LockBit 3.0 (a.k.a. Black) is the latest version of the LockBit ransomware, emerged in September 2019, becoming one of the most relevant RaaS groups in the world.

Ransomware.BlackCat (a.k.a. ALPHV and Noberus) is a Ransomware-as-a-Service (RaaS) group that emerged in November 2021, making headlines for being a sophisticated ransomware written in Rust.

推奨事項

This report highlighted increasing cloud adoption, including increases of data being uploaded to and downloaded from a wide variety of cloud apps. It also highlighted an increasing trend of attackers abusing a wide variety of cloud apps, especially popular enterprise apps, to deliver malware to their victims. The malware samples were primarily Trojans, but also included downloaders, backdoors, file-based exploits, ransomware, and infostealers. Netskope Threat Labs recommends organizations in Latin America review their security posture to ensure that they are adequately protected against these trends:

すべての Web トラフィックやクラウドトラフィックを含むすべての HTTP および HTTPS ダウンロードを検査して、マルウェアがネットワークに侵入するのを防ぎます。 Netskope の顧客は、すべてのカテゴリからのダウンロードとすべてのファイルタイプに適用される脅威保護ポリシーを使用してNetskope Next Gen Secure Web Gatewayを構成できます。
実行可能ファイルやアーカイブなどのリスクの高いファイルの種類は、ダウンロードする前に静的分析と動的分析を組み合わせて徹底的に検査します。 Netskope Advanced Threat Protectionの顧客は、 Patient Zero Prevention ポリシーを使用して、完全な検査が完了するまでダウンロードを保留できます。
組織内で使用されていないアプリやインスタンスからのダウンロードをブロックするポリシーを構成して、ビジネスに必要なアプリやインスタンスのみにリスクを軽減します。
組織内で使用されていないアプリやインスタンスへのアップロードをブロックするポリシーを構成して、内部関係者による偶発的または意図的なデータ漏洩や攻撃者による悪用のリスクを軽減します。
一般的なマルウェアに関連するコマンドアンドコントロールトラフィックなど、悪意のあるトラフィックパターンを識別してブロックできる侵入防御システム (IPS) を使用します。この種の通信をブロックすると、攻撃者が追加のアクションを実行する能力を制限することで、さらなる被害を防ぐことができます。

In addition to the recommendations above, Remote Browser Isolation (RBI) technology can provide additional protection when there is a need to visit websites that fall into categories that can present higher risk, like Newly Observed and Newly Registered Domains.

Netskope Threat Labs

業界屈指のクラウド脅威およびマルウェア研究者を擁するNetskope Threat Labs は、企業に影響を与える最新のクラウド脅威を発見、分析、および防御設計します。当社の研究者は、DefCon、BlackHat、RSAなどのトップセキュリティカンファレンスで定期的にプレゼンターやボランティアを務めています。

このレポートについて

Netskope は、世界中の何百万ものユーザーに脅威からの保護を提供します。このレポートに記載されている情報は、事前に許可を得た Netskope 顧客のサブセットに関連してNetskope Security Cloud プラットフォームによって収集された匿名化された使用状況データに基づいています。

This report contains information about detections raised by Netskope’s Next Generation Secure Web Gateway (SWG), not considering the significance of the impact of each individual threat. Stats in this report are based on the period starting July 1, 2022 through June 30, 2023. Stats are reflection of attacker tactics, user behavior, and organization policy.

Threat Labsのレポート

毎月のNetskope Threat Labsレポートには、Netskope Security Cloudプラットフォームがブロックした上位5つの悪意のあるドメイン、マルウェア、アプリに加えて、最近の出版物と脅威のまとめが記載されています。

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SASEのリーダーと共にセキュリティ対策を強化する

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Netskope Threat Labs Report: LATAM

ラテンアメリカ2023年7月吉日

このレポートでは

クラウド アプリの導入

最も人気のあるクラウドアプリ

アップロードに使用された上位のアプリ

ダウンロードに使用された上位アプリ

クラウド アプリの不正使用

クラウドマルウェア配信

クラウドアプリが悪用されてマルウェア配信

マルウェアとランサムウェア

主なマルウェアの種類

上位のマルウェアおよびランサムウェア ファミリ

推奨事項

Netskope Threat Labs

このレポートについて

Threat Labsのレポート

SASEのリーダーと共にセキュリティ対策を強化する

Netskope
Threat Labs
Report: LATAM

ラテンアメリカ
2023年7月吉日

クラウドアプリの導入

クラウドアプリの不正使用

上位のマルウェアおよびランサムウェアファミリ