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Mallory
MalwareRansomwareUsed by 22 actorsExploits 1 CVE

Conti

Also known asConti V2

Conti is a ransomware family and former ransomware-as-a-service operation active primarily from 2020 to 2022, closely linked to the TrickBot ecosystem and described in the content as developed by members of the TrickBot gang. It was one of the most prolific ransomware variants of its period and was used against more than 900 to over 1,000 victims worldwide, including organizations across 47 U.S. states, the District of Columbia, Puerto Rico, and about 31 foreign countries. The FBI stated that in 2021 Conti was used against more critical infrastructure victims than any other ransomware variant, and reporting in the content says the operation generated at least $150 million in ransom payments by January 2022.

Conti attacks involved compromising victim computers and networks, encrypting files and systems, stealing data, and extorting victims both for restoration of access and to prevent public disclosure of stolen information, i.e., double extortion. The content associates Conti with attacks on healthcare organizations, government agencies, educational institutions, businesses, hospitals, schools, local governments, police departments, sheriff’s offices, emergency medical services, and other critical infrastructure. A cited incident attributed to Conti affected Spencer’s Gifts’ employer-sponsored health plan in 2021, where ransomware encrypted servers containing protected health information and the gang later claimed responsibility on its dark web site.

The malware and operation are interlinked with TrickBot and related tooling. Court filings cited in the content state that a Conti conspirator directed development of a loader malware component used to load programs necessary for other malicious attacks. Separate reporting notes that threat actors associated with Conti-based or successor activity used tools such as Cobalt Strike, and that Conti and TrickBot were operationally connected. The content also notes a Linux/ESXi variant, Conti ESXi, which emerged in April 2022; research cited there found overlaps between Linux Conti variants, leaked Windows Conti code, and Babuk-derived ESXi locker functionality.

Conti is also significant as a code lineage source for later ransomware. The content states that DragonForce samples were assessed as developed based on Conti ransomware, and that DragonForce and other actors used leaked Conti source code. Black Basta is repeatedly described as a rebrand or successor emerging from the remnants of the Conti operation, and other successor or splinter groups mentioned include Royal/BlackSuit, Zeon, Quantum, Hive, BlackByte, Karakurt, and Silent Ransom Group.

The operation ceased under the Conti name in 2022 after internal leaks and fallout related to its support for the Russian government following the invasion of Ukraine. Multiple indictments and guilty pleas cited in the content tie named operators and developers to the Conti conspiracy, including roles such as crypter development, infrastructure administration, management, and loader development.

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EXPLOITED CVES

Vulnerabilities exploited

1 CVE Mallory has correlated with this family across public research and vendor advisories. Each row links to the full Mallory page for that vulnerability.

1 CVES
CVE-2021-34473ProxyShell pre-auth SSRF in Microsoft Exchange Autodiscover

Activists have reportedly leaked the contents of internal chats from the Russia-affiliated Conti ransomware gang... Both Conti and another criminal crew called Karma hit the unidentified org through the ProxyShell exploit... Conti was deploying its own malware.

via register securitytheregister.com
THREAT ACTORS

Groups observed using it

22 distinct threat actors attributed by public researchers. Open in Mallory to see the full evidence chain and overlapping campaigns.

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DragonForce

The sample analyzed in this report was identified as DragonForce ransomware developed based on Conti ransomware.

via medium s2wblogmedium.com
Conti

A longtime former member of Conti, a ransomware group that attacked more than 1,000 organizations globally before it disbanded in 2022, pleaded guilty ... The defendant and his conspirators used the Conti ransomware to terrorize people and businesses in the United States and around the world, causing millions of dollars in damage.

via cyberscoopcyberscoop.com
Silent Ransom Group

Waseem Ahmed, head of engineering at Secure.com, explained that SGR is a Conti offshoot now running pure data-theft extortion.

via scworldscworld.com
SRG

Waseem Ahmed, head of engineering at Secure.com, explained that SGR is a Conti offshoot now running pure data-theft extortion.

via scworldscworld.com
WIZARD SPIDER

The crypto-locking malware first emerged around the middle of 2018 and seemed to have its heyday largely in 2019, before rebranding as Conti around May 2020, and appearing to merge with TrickBot - aka Wizard Spider - by the end of 2021.

via bank info securitybankinfosecurity.com
Karakurt

Emsisoft threat analyst Brett Callow previously told The Record that the group has been active since the middle of 2021 and is believed to be a spin-off of the Conti ransomware group. Several other security companies ... have released reports this year showing concrete ties between the infrastructure used by Conti and Karakurt.

via the record mediatherecord.media
MITRE ATT&CK

Techniques & procedures

19 distinct techniques documented for this family, organized by ATT&CK tactic.

Resource Development

1 technique
T1588.001MalwareEvidence1

Adversaries may buy, steal, or download malware that can be used during targeting. Malicious software can include payloads, droppers, post-compromise tools, backdoors, packers, and C2 protocols. Adversaries may acquire malware to support their operations, obtaining a means for maintaining control of remote machines, evading defenses, and executing post-compromise behaviors.

Initial Access

1 technique
T1078Valid AccountsEvidence1

GTsSS cyber actors frequently collect credentials to gain initial access to target organizations... Russian state-sponsored APT actors have demonstrated their ability to maintain persistence using compromised credentials.

Execution

1 technique
T1059.003Windows Command ShellEvidence3

During the 2016 Ukraine Electric Power Attack, Sandworm Team used the xp_cmdshell command in MS-SQL. During the 2025 Poland Wiper Attacks, the adversaries leveraged PsExec to run cmd.exe commands on multiple victim machines. Numerous malware families and groups are described as using cmd.exe, cmd /c, Windows command shell, or command-line interfaces to execute commands, payloads, reconnaissance, persistence, cleanup, and ransomware actions.

Persistence

1 technique
T1078Valid AccountsEvidence1

GTsSS cyber actors frequently collect credentials to gain initial access to target organizations... Russian state-sponsored APT actors have demonstrated their ability to maintain persistence using compromised credentials.

Privilege Escalation

1 technique
T1078Valid AccountsEvidence1

GTsSS cyber actors frequently collect credentials to gain initial access to target organizations... Russian state-sponsored APT actors have demonstrated their ability to maintain persistence using compromised credentials.

Stealth

3 techniques
T1027Obfuscated Files or InformationEvidence2

Galochkin was a “crypter” for Conti, modifying the ransomware so that it would not be detected by anti-virus programs

T1078Valid AccountsEvidence1

GTsSS cyber actors frequently collect credentials to gain initial access to target organizations... Russian state-sponsored APT actors have demonstrated their ability to maintain persistence using compromised credentials.

T1140Deobfuscate/Decode Files or InformationEvidence2

The content repeatedly describes malware and threat actors decoding, decrypting, deobfuscating, or unpacking payloads, strings, configuration data, commands, and C2 responses prior to execution or use.

Discovery

3 techniques
T1016System Network Configuration DiscoveryEvidence1

The content repeatedly describes malware and threat actors using commands and APIs such as ipconfig /all, ifconfig, arp -a, route print, nbtstat, netsh, GetAdaptersInfo, and GetIpNetTable to gather IP addresses, MAC addresses, DNS, DHCP, gateways, routing tables, ARP cache, proxy settings, domains, and network adapter/interface details.

T1057Process DiscoveryEvidence1

The content repeatedly describes malware and threat actors obtaining lists of running processes, using utilities such as tasklist, ps, WMI, Get-Process, CreateToolhelp32Snapshot, EnumProcesses, and similar APIs/commands to enumerate active processes on victim systems.

T1083File and Directory DiscoveryEvidence1

The content repeatedly describes malware and threat actors listing files and directories, enumerating drives, searching for files by extension/name/path, retrieving file metadata, and browsing file systems (for example: "APT28 has used Forfiles to locate PDF, Excel, and Word documents during collection" and "cmd can be used to find files and directories with native functionality such as dir commands").

Lateral Movement

1 technique
T1021.001Remote Desktop ProtocolEvidence1

RDP exploitation is one of the top initial infection vectors for ransomware... notable initial access and persistence vectors for affiliated actors include Emotet, Cobalt Strike, spearphishing, and stolen or weak Remote Desktop Protocol (RDP) credentials.

Collection

1 technique
T1005Data from Local SystemEvidence2

He also admitted to possessing data from 12 victims, including eight in the US.

Command and Control

1 technique
T1105Ingress Tool TransferEvidence4

Loader feature: It can load a 2nd stage attack as EXE or DLL

Exfiltration

4 techniques
T1041Exfiltration Over C2 ChannelEvidence1

Some ransomware operators do not allow targeting (encrypting and exfiltrating data) of non-profit organizations, healthcare, and government entities...

T1537Transfer Data to Cloud AccountEvidence1

According to prosecutors, Lytvynenko and his co-conspirators deployed Conti ransomware on victim networks in the United States and abroad, stealing data and encrypting devices to extort Bitcoin ransom payments.

T1567Exfiltration Over Web ServiceEvidence2

Court filings allege the conspirators hacked into victims’ computers and networks, encrypted data, and demanded a ransom to restore the victims’ access to their files and to avoid public disclosure of the stolen information.

T1567.002Exfiltration to Cloud StorageEvidence1

On top of client applications such as those provided by Mega, many ransomware families may use other software or built-in operating system utilities to exfiltrate data. We’ll use Mega as the example here... you can look for execution of any process that is not chrome.exe ... initiating a network connection to the domains mega.io or mega.co.nz .

Impact

4 techniques
T1486Data Encrypted for ImpactEvidence22

One of the most prolific ransomware groups half a decade ago, Conti was used in attacks against over 1,000 organizations in the US and abroad between 2020 and 2022.

T1490Inhibit System RecoveryEvidence1

Akira will delete system volume shadow copies via PowerShell commands. Avaddon deletes backups and shadow copies using native system tools. Babuk has the ability to delete shadow volumes using vssadmin.exe delete shadows /all /quiet. BlackCat can delete shadow copies using vssadmin.exe delete shadows /all /quiet and wmic.exe Shadowcopy Delete; it can also modify the boot loader using bcdedit /set {default} recoveryenabled No.

T1565Data ManipulationEvidence1

The ransomware attack has prevented the government from effectively collecting taxes, and some public employees’ salaries are either being overpaid or underpaid, Chaves said.

T1657Financial TheftEvidence2

He analyzed stolen data and used sensitive information to intensify extortion tactics. When the ransom demand was not met, he allegedly encouraged co-conspirators to leak or sell the data. Court documents reveal he distributed a bulk set of sensitive records to hundreds of patients, aiming to amplify fear and force compliance.

INDICATORS OF COMPROMISE

IOCs tracked for this family

14 indicators attributed across vendor reports, sandbox runs, and researcher write-ups. Full values are available in Mallory.

View more in app
Network
10 tracked

IPs, domains, and DNS infrastructure linked to this family.

Hashes
2 tracked

File hashes (MD5, SHA-1, SHA-256) from samples and reports.

Other
2 tracked

Other indicator types observed in public reporting.

TypeValueLatest sighting
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What this page doesn’t show

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IOC matching14

Match every observed IP, domain, and hash against your live telemetry.

Threat actor attribution22

Named campaigns wielding this family, with evidence pinned to each claim.

Exploited vulnerabilities1

CVEs this family uses for access and lateral movement.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

MITRE ATT&CK mapping19

Every documented technique, ranked by evidence weight.

Researcher chatter

Reddit, Mastodon, and CTI community discussion around this family.