SVC New Stealer on the Horizon
Summary:
Researchers at SEQRITE have uncovered a new C++ based information stealer, dubbed SvcStealer, which is being distributed through spear-phishing emails. First observed in late January 2025, SvcStealer is designed to harvest a wide range of sensitive information from the targeted system. This includes data from messaging apps like Discord, Telegram, Tox, and 64gram, as well as passwords and credentials stored in browsers such as Chrome, Edge, and Opera. It also collects system information, including installed software, running processes, screenshots, and cryptocurrency wallet data. After stealing this data, SvcStealer compresses it into a ZIP file and sends it to a C2 server via an HTTP POST request. To cover its tracks, the malware then deletes the stolen files from the victim’s machine, ensuring its activities remain undetected.
Security Officer Comments:
Infostealers are increasingly being developed and deployed by threat actors in cyberattacks, as these malware strains are capable of collecting a wide array of valuable data. This stolen information is typically sold on underground forums or used to gain initial access to an organization's network for further malicious activities. In the case of SvcStealer, researchers have noted that it not only gathers sensitive data but is also capable of receiving commands from its C2 server to download additional payloads, such as ransomware. Furthermore, SvcStealer evades detection by terminating specific processes commonly used by security tools and administrators, such as Taskmgr.exe, ProcessHacker.exe, and procexp.exe, making it harder to spot and analyze. Overall, with its ability to harvest extensive data and circumvent security measures, SvcStealer presents a compelling tool for cybercriminals, who are likely to use it in future attacks.
Suggested Corrections:
IOCs and Yara Rules can be accessed here.
Users should always be cautious of individuals or organizations that ask for personal information. Most companies will not ask for sensitive data from their customers. If in doubt, users should verify with the company itself to avoid any potential issues.
Users should always take a close look at the sender’s display name when checking the legitimacy of an email. Most companies use a single domain for their URLs and emails, so a message that originates from a different domain is a red flag.
As a general rule, users should not click links or download files even if they come from seemingly “trustworthy” sources.
Check for mismatched URLs. While an embedded URL might seem perfectly valid, hovering above it might show a different web address. In fact, users should avoid clicking links in emails unless they are certain that it is a legitimate link.
Users should always be on the lookout for any grammatical errors and spelling mistakes. Legitimate companies will often employ proofreaders and editors who ensure that the materials they send out are error-free.
Users should not be frightened or intimidated by messages that have an alarmist tone. They should double check with the company if they are uncertain about the status of their accounts.
Phishing emails are designed to be sent to a large number of people, so they need to be as impersonal as possible. Users should check whether the message contains a generic subject and greeting, as this can be a sign of a phishing attempt.
Although not every end user has access to advanced anti-phishing software, they can still use the built-in protection of their email clients to filter messages. One example is setting the email client to block all images unless approved.
Legitimate companies will never send confirmation emails unless there are specific reasons for doing so. In fact, most companies will avoid sending unsolicited messages unless it’s for company updates, newsletters, or advertising purposes.
Users should always take the context of an email or message into account. For example, most online accounts do away with viewable member numbers, so users should be wary if they receive emails containing a “member number” for services that generally don’t use them.
It is important to take note of unusual information in the text of the message. Any mentions of operating systems and software that are not typically used by consumers can often be indicators of a phishing attempt.
If it seems suspicious, it probably is. Users should always err on the side of caution when it comes to sending out personally identifiable information through messages and emails.
Link(s):
https://www.seqrite.com/blog/svc-new-stealer-on-the-horizon/
Researchers at SEQRITE have uncovered a new C++ based information stealer, dubbed SvcStealer, which is being distributed through spear-phishing emails. First observed in late January 2025, SvcStealer is designed to harvest a wide range of sensitive information from the targeted system. This includes data from messaging apps like Discord, Telegram, Tox, and 64gram, as well as passwords and credentials stored in browsers such as Chrome, Edge, and Opera. It also collects system information, including installed software, running processes, screenshots, and cryptocurrency wallet data. After stealing this data, SvcStealer compresses it into a ZIP file and sends it to a C2 server via an HTTP POST request. To cover its tracks, the malware then deletes the stolen files from the victim’s machine, ensuring its activities remain undetected.
Security Officer Comments:
Infostealers are increasingly being developed and deployed by threat actors in cyberattacks, as these malware strains are capable of collecting a wide array of valuable data. This stolen information is typically sold on underground forums or used to gain initial access to an organization's network for further malicious activities. In the case of SvcStealer, researchers have noted that it not only gathers sensitive data but is also capable of receiving commands from its C2 server to download additional payloads, such as ransomware. Furthermore, SvcStealer evades detection by terminating specific processes commonly used by security tools and administrators, such as Taskmgr.exe, ProcessHacker.exe, and procexp.exe, making it harder to spot and analyze. Overall, with its ability to harvest extensive data and circumvent security measures, SvcStealer presents a compelling tool for cybercriminals, who are likely to use it in future attacks.
Suggested Corrections:
IOCs and Yara Rules can be accessed here.
Users should always be cautious of individuals or organizations that ask for personal information. Most companies will not ask for sensitive data from their customers. If in doubt, users should verify with the company itself to avoid any potential issues.
Users should always take a close look at the sender’s display name when checking the legitimacy of an email. Most companies use a single domain for their URLs and emails, so a message that originates from a different domain is a red flag.
As a general rule, users should not click links or download files even if they come from seemingly “trustworthy” sources.
Check for mismatched URLs. While an embedded URL might seem perfectly valid, hovering above it might show a different web address. In fact, users should avoid clicking links in emails unless they are certain that it is a legitimate link.
Users should always be on the lookout for any grammatical errors and spelling mistakes. Legitimate companies will often employ proofreaders and editors who ensure that the materials they send out are error-free.
Users should not be frightened or intimidated by messages that have an alarmist tone. They should double check with the company if they are uncertain about the status of their accounts.
Phishing emails are designed to be sent to a large number of people, so they need to be as impersonal as possible. Users should check whether the message contains a generic subject and greeting, as this can be a sign of a phishing attempt.
Although not every end user has access to advanced anti-phishing software, they can still use the built-in protection of their email clients to filter messages. One example is setting the email client to block all images unless approved.
Legitimate companies will never send confirmation emails unless there are specific reasons for doing so. In fact, most companies will avoid sending unsolicited messages unless it’s for company updates, newsletters, or advertising purposes.
Users should always take the context of an email or message into account. For example, most online accounts do away with viewable member numbers, so users should be wary if they receive emails containing a “member number” for services that generally don’t use them.
It is important to take note of unusual information in the text of the message. Any mentions of operating systems and software that are not typically used by consumers can often be indicators of a phishing attempt.
If it seems suspicious, it probably is. Users should always err on the side of caution when it comes to sending out personally identifiable information through messages and emails.
Link(s):
https://www.seqrite.com/blog/svc-new-stealer-on-the-horizon/