Introduction
On May 31, a critical unpatched vulnerability, which affects all confluence server and data center supported versions was reported to Atlassian by Volexity, a security company.
Atlassian warned their customers of the critical vulnerability on June 2 and issued a patch a day later. CISA added this vulnerability to their list of Known Exploited Vulnerabilities on June 3.…
概述
奇安信威胁情报中心曾在2021年曾经发表过《Operation Magichm：浅谈蔓灵花组织的CHM文件投放与后续操作》一文，时隔一年我们发现蔓灵花团伙（APT-Q-37）在四月份最新的攻击活动中使用了新的攻击手法和样本，除此之外文末还会对摩耶象（APT-Q-41）近期的钓鱼活动和响尾蛇（APT-Q-39）今年以来的基础设施进行分享。
从南亚方向近两年的攻击活动来看，各个组织仍然处于“吃老本”的状态，没有推陈出新的倾向，存在针对11882和8570等古董漏洞的路径依赖，在木马免杀方向也非常不理想，往往被天擎查杀四五次后还未到达免杀状态。这令我们感到失望。我们推测产生这种现象的原因可能与南亚地区的安全环境有关。
与之前的文章类似，本文内容也仅仅是对在过去一段时间内攻击手法做一个分享。文末会分享相关组织历史或未启用的基础设施。
APT-Q-37(蔓灵花)
邮件分析
蔓灵花组织仿冒军贸客户（孟加拉海军）以维修船体声纳为主题向军工企业投递的带有chm附件的钓鱼邮件。
除了chm，蔓灵花还投递了带有DDE auto的文档作为附件。仿冒军工企业以推销反无人机系统为主题向军贸客户（孟加拉空军）投递钓鱼邮件。
攻击者拿到军贸客户的邮箱权限后，会在正常来往邮件中新增的一个恶意的DDE附件，以此来提高钓鱼的成功率。
正常PDF如下：
使用可信邮箱向列表全员发送带有新年祝福的SFX样本。
投递带有宏文档的钓鱼邮件
诱饵分析
DDE AUTO
由于Chm过于常见，故这里不做分析，DDE文档如下:
文件名
MD5
类型
Technical Proposal of Portable Anti-Drone System.docx
54ea5083ad67b15a249e07bb1a4fb3e0
DDE AUTO
China Great Wall Industry Corp (CGWIC) Profile and POC.docx
54ea5083ad67b15a249e07bb1a4fb3e0
DDE AUTO
Payment Detail.docx
54ea5083ad67b15a249e07bb1a4fb3e0
DDE AUTO
Invitation to Visit Bangladesh(Officials of Chinaship).docx…
In this multi-day intrusion, we observed a threat actor gain initial access to an organization by exploiting a vulnerability in ManageEngine SupportCenter Plus. The threat actor, discovered files on the server and dumped credentials using a web shell, moved laterally to key servers using Plink and RDP and exfiltrated sensitive information using the web shell and RDP.…
In a recent blog post by Microsoft, a new Zero-Day vulnerability (CVE-2022-30190) was discussed. This vulnerability affects Microsoft Support Diagnostic Tool (MSDT), and the blog post provides some guidance on mitigating the impact of this vulnerability.
The post mentions that a Remote Code Execution (RCE) vulnerability present in MSDT allows the attackers to execute arbitrary code by exploiting it.…
Users of WSO2 products are advised to update their respective products and platforms or to apply the temporary mitigation steps immediately.
We observed vulnerability CVE-2022-29464 being exploited in the wild since April, allowing unrestricted file uploads resulting to arbitrary remote code execution (RCE). Disclosed and patched in April, the security gap was ranked Critical at 9.8 and affects a number of WSO2 products.…
Recently Cyble researchers came across a post where a researcher mentioned about fake Proof of Concept (POC) of CVE-2022-26809. Upon further investigation, we discovered that it’s malware disguised as an Exploit. Similarly, we found a malicious sample that appears to be a fake POC of CVE-2022-24500.…
In December last year, the vulnerability (CVE-2021-44228) of Java-based logging utility Log4j became a worldwide issue. It is a remote code execution vulnerability that can include the remote Java object address in the log message and send it to the server using Log4j to run the Java object in the server.…
Summary
Update June 2, 2022:
This Cybersecurity Advisory (CSA) has been updated with additional indicators of compromise (IOCs) and detection signatures, as well as tactics, techniques, and procedures (TTPs) from trusted third parties.
Update End
The Cybersecurity and Infrastructure Security Agency (CISA) is releasing this CSA to warn organizations that malicious cyber actors, likely advanced persistent threat (APT) actors, are exploiting CVE-2022-22954 and CVE-2022-22960 separately and in combination.…
Trend Micro’s Managed XDR team addressed a Kingminer botnet attack conducted through an SQL exploit. We discuss our findings and analysis in this report.
We observed malicious activities in a client’s SQL server that flagged a potential exploit in one public-facing device. A quick look at the Trend Micro Vision One™ Workbench showed that a Microsoft SQL server process created an obfuscated PowerShell command.…
We all know vulnerabilities have a lifecycle. First, they start as closely held secrets, hopefully known to the company producing the vulnerable software. After becoming publically known, there is often a “mad dash” to a public exploit. During this phase, security companies often show their skills by hinting at privately developed exploits first until the exploit is publically known.…
Secureworks® Counter Threat Unit™ (CTU) researchers are investigating attacks by the Iranian COBALT MIRAGE threat group, which has been operating since at least June 2020. COBALT MIRAGE is linked to the Iranian COBALT ILLUSION threat group, which predominantly uses persistent phishing campaigns to obtain initial access.…
This post is also available in: 日本語 (Japanese)
Executive SummaryOn May 4, 2022, F5 released a security advisory for a remote code execution vulnerability in the iControlREST component of its BIG-IP product tracked in CVE-2022-1388. Threat actors can exploit this vulnerability to bypass authentication and run arbitrary code on unpatched systems.…
In mid-March, FortiGuard Labs observed a new DDoS botnet calling itself “Enemybot” and attributing itself to Keksec, a threat group that specializes in cryptomining and DDoS attacks.
This botnet is mainly derived from Gafgyt’s source code but has been observed to borrow several modules from Mirai’s original source code.…
We discovered active exploitation of a vulnerability in the Spring Framework designated as CVE-2022-22965 that allows malicious actors to download the Mirai botnet malware.
Trend Micro Threat Research observed active exploitation of the Spring4Shell vulnerability assigned as CVE-2022-22965, which allows malicious actors to weaponize and execute the Mirai botnet malware.…
Between February and March 2022, our FortiGuard Labs team observed that the Beastmode (aka B3astmode) Mirai-based DDoS campaign has aggressively updated its arsenal of exploits. Five new exploits were added within a month, with three targeting various models of TOTOLINK routers.
This inclusion of TOTOLINK exploits is especially noteworthy as they were added just a week after the exploit codes were published on GitHub.…
In this intrusion from December 2021, the threat actors utilized IcedID as the initial access vector. IcedID is a banking trojan that first appeared in 2017, usually, it is delivered via malspam campaigns and has been widely used as an initial access vector in multiple ransomware intrusions.…
Geopolitical tensions often make headlines and present a golden opportunity for threat actors to exploit the situation, especially those targeting high-profile victims. In the past month while the Russian invasion of Ukraine was unfolding, Check Point Research (CPR) has observed advanced persistent threat (APT) groups around the world launching new campaigns, or quickly adapting ongoing ones to target victims with spear-phishing emails using the war as a lure.…